/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.10.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:23:29,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:23:29,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:23:29,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:23:29,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:23:29,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:23:29,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:23:29,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:23:29,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:23:29,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:23:29,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:23:29,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:23:29,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:23:29,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:23:29,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:23:29,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:23:29,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:23:29,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:23:29,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:23:29,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:23:29,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:23:29,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:23:29,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:23:29,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:23:29,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:23:29,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:23:29,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:23:29,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:23:29,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:23:29,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:23:29,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:23:29,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:23:29,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:23:29,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:23:29,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:23:29,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:23:29,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:23:29,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:23:29,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:23:29,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:23:29,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:23:29,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:23:29,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:23:29,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:23:29,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:23:29,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:23:29,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:23:29,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:23:29,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:23:29,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:23:29,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:23:29,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:23:29,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:23:29,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:23:29,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:23:29,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:23:29,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:23:29,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:23:29,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:23:29,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:23:29,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:23:29,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:23:29,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:23:29,723 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:23:29,723 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:23:29,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:23:29,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:23:29,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:23:29,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:23:29,950 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:23:29,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-01-31 16:23:29,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657f85297/1048ff1f4f7e46f29f5d6f3756dc1acb/FLAGb995ea702 [2022-01-31 16:23:30,500 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:23:30,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-2.c [2022-01-31 16:23:30,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657f85297/1048ff1f4f7e46f29f5d6f3756dc1acb/FLAGb995ea702 [2022-01-31 16:23:31,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657f85297/1048ff1f4f7e46f29f5d6f3756dc1acb [2022-01-31 16:23:31,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:23:31,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:23:31,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:23:31,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:23:31,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:23:31,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72457e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31, skipping insertion in model container [2022-01-31 16:23:31,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:23:31,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:23:31,433 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.10.i.cil-2.c[73311,73324] [2022-01-31 16:23:31,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:23:31,451 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:23:31,558 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.10.i.cil-2.c[73311,73324] [2022-01-31 16:23:31,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:23:31,587 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:23:31,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31 WrapperNode [2022-01-31 16:23:31,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:23:31,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:23:31,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:23:31,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:23:31,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:23:31,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:23:31,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:23:31,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:23:31,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (1/1) ... [2022-01-31 16:23:31,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:23:31,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:23:31,764 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) [2022-01-31 16:23:31,784 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 [2022-01-31 16:23:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:23:31,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:23:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:23:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 16:23:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 16:23:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:23:31,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:23:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 16:23:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 16:23:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 16:23:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:23:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:23:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:23:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:23:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 16:23:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:23:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:23:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:23:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 16:23:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 16:23:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 16:23:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 16:23:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:23:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 16:23:31,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 16:23:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 16:23:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:23:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 16:23:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 16:23:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 16:23:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 16:23:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 16:23:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:23:31,953 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:23:31,954 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:23:32,706 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:23:33,073 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 16:23:33,073 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 16:23:33,084 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:23:33,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:23:33,092 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:23:33,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:23:33 BoogieIcfgContainer [2022-01-31 16:23:33,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:23:33,095 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:23:33,095 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:23:33,096 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:23:33,098 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:23:33" (1/1) ... [2022-01-31 16:23:33,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:23:33 BasicIcfg [2022-01-31 16:23:33,171 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:23:33,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:23:33,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:23:33,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:23:33,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:23:31" (1/4) ... [2022-01-31 16:23:33,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae43fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:23:33, skipping insertion in model container [2022-01-31 16:23:33,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:23:31" (2/4) ... [2022-01-31 16:23:33,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae43fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:23:33, skipping insertion in model container [2022-01-31 16:23:33,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:23:33" (3/4) ... [2022-01-31 16:23:33,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae43fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:23:33, skipping insertion in model container [2022-01-31 16:23:33,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:23:33" (4/4) ... [2022-01-31 16:23:33,181 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-2.cJordan [2022-01-31 16:23:33,188 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:23:33,188 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:23:33,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:23:33,243 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:23:33,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:23:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 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) [2022-01-31 16:23:33,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-31 16:23:33,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:33,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:33,283 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2072103194, now seen corresponding path program 1 times [2022-01-31 16:23:33,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:33,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528213302] [2022-01-31 16:23:33,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:33,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:33,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:23:33,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:33,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528213302] [2022-01-31 16:23:33,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528213302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:33,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:33,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:33,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484695744] [2022-01-31 16:23:33,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:33,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:33,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:33,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:33,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:33,859 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.7006802721088434) internal successors, (250), 148 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:35,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:35,766 INFO L93 Difference]: Finished difference Result 281 states and 465 transitions. [2022-01-31 16:23:35,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:35,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-01-31 16:23:35,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:35,778 INFO L225 Difference]: With dead ends: 281 [2022-01-31 16:23:35,778 INFO L226 Difference]: Without dead ends: 255 [2022-01-31 16:23:35,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:35,782 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 148 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:35,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 445 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 16:23:35,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-01-31 16:23:35,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 179. [2022-01-31 16:23:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.5977011494252873) internal successors, (278), 174 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) [2022-01-31 16:23:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 282 transitions. [2022-01-31 16:23:35,826 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 282 transitions. Word has length 48 [2022-01-31 16:23:35,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:35,827 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 282 transitions. [2022-01-31 16:23:35,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 282 transitions. [2022-01-31 16:23:35,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-31 16:23:35,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:35,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:35,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:23:35,830 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:35,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash 190260629, now seen corresponding path program 1 times [2022-01-31 16:23:35,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:35,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038428196] [2022-01-31 16:23:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:35,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:36,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:23:36,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:36,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038428196] [2022-01-31 16:23:36,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038428196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:36,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:36,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:36,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488901152] [2022-01-31 16:23:36,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:36,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:36,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:36,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:36,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:36,053 INFO L87 Difference]: Start difference. First operand 179 states and 282 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:37,636 INFO L93 Difference]: Finished difference Result 294 states and 459 transitions. [2022-01-31 16:23:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:37,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-01-31 16:23:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:37,639 INFO L225 Difference]: With dead ends: 294 [2022-01-31 16:23:37,639 INFO L226 Difference]: Without dead ends: 294 [2022-01-31 16:23:37,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:37,640 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:37,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 16:23:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-01-31 16:23:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 219. [2022-01-31 16:23:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.644859813084112) internal successors, (352), 214 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:37,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 356 transitions. [2022-01-31 16:23:37,669 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 356 transitions. Word has length 49 [2022-01-31 16:23:37,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:37,669 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 356 transitions. [2022-01-31 16:23:37,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:37,670 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 356 transitions. [2022-01-31 16:23:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-31 16:23:37,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:37,672 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:37,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:23:37,673 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:37,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash -205061924, now seen corresponding path program 1 times [2022-01-31 16:23:37,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:37,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517919157] [2022-01-31 16:23:37,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:37,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:37,863 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-31 16:23:37,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:37,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517919157] [2022-01-31 16:23:37,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517919157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:37,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:37,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:37,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771954472] [2022-01-31 16:23:37,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:37,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:37,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:37,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:37,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:37,866 INFO L87 Difference]: Start difference. First operand 219 states and 356 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:39,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:40,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:40,297 INFO L93 Difference]: Finished difference Result 247 states and 396 transitions. [2022-01-31 16:23:40,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:40,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-01-31 16:23:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:40,299 INFO L225 Difference]: With dead ends: 247 [2022-01-31 16:23:40,299 INFO L226 Difference]: Without dead ends: 247 [2022-01-31 16:23:40,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:40,300 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 22 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:40,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 463 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:23:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-01-31 16:23:40,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 230. [2022-01-31 16:23:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6488888888888888) internal successors, (371), 225 states have internal predecessors, (371), 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) [2022-01-31 16:23:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 375 transitions. [2022-01-31 16:23:40,311 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 375 transitions. Word has length 77 [2022-01-31 16:23:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:40,312 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 375 transitions. [2022-01-31 16:23:40,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 375 transitions. [2022-01-31 16:23:40,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-31 16:23:40,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:40,314 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:40,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:23:40,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:40,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:40,315 INFO L85 PathProgramCache]: Analyzing trace with hash 432563086, now seen corresponding path program 1 times [2022-01-31 16:23:40,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:40,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353477900] [2022-01-31 16:23:40,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:40,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:23:40,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:40,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353477900] [2022-01-31 16:23:40,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353477900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:40,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:40,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:40,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380398861] [2022-01-31 16:23:40,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:40,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:40,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:40,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:40,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:40,478 INFO L87 Difference]: Start difference. First operand 230 states and 375 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:42,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:42,715 INFO L93 Difference]: Finished difference Result 247 states and 395 transitions. [2022-01-31 16:23:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:42,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-01-31 16:23:42,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:42,717 INFO L225 Difference]: With dead ends: 247 [2022-01-31 16:23:42,717 INFO L226 Difference]: Without dead ends: 247 [2022-01-31 16:23:42,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:42,718 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 24 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:42,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 465 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 16:23:42,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-01-31 16:23:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 230. [2022-01-31 16:23:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6444444444444444) internal successors, (370), 225 states have internal predecessors, (370), 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) [2022-01-31 16:23:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 374 transitions. [2022-01-31 16:23:42,726 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 374 transitions. Word has length 90 [2022-01-31 16:23:42,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:42,726 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 374 transitions. [2022-01-31 16:23:42,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 374 transitions. [2022-01-31 16:23:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-31 16:23:42,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:42,729 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:42,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:23:42,730 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:42,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:42,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1446851934, now seen corresponding path program 1 times [2022-01-31 16:23:42,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:42,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249567518] [2022-01-31 16:23:42,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:42,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:23:42,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:42,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249567518] [2022-01-31 16:23:42,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249567518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:42,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:42,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:42,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009384732] [2022-01-31 16:23:42,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:42,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:42,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:42,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:42,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:42,848 INFO L87 Difference]: Start difference. First operand 230 states and 374 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:44,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:45,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:45,932 INFO L93 Difference]: Finished difference Result 246 states and 393 transitions. [2022-01-31 16:23:45,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:45,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-01-31 16:23:45,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:45,934 INFO L225 Difference]: With dead ends: 246 [2022-01-31 16:23:45,934 INFO L226 Difference]: Without dead ends: 246 [2022-01-31 16:23:45,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:45,935 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 28 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:45,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 467 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:23:45,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-01-31 16:23:45,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2022-01-31 16:23:45,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.64) internal successors, (369), 225 states have internal predecessors, (369), 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) [2022-01-31 16:23:45,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 373 transitions. [2022-01-31 16:23:45,941 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 373 transitions. Word has length 91 [2022-01-31 16:23:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:45,942 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 373 transitions. [2022-01-31 16:23:45,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:45,942 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 373 transitions. [2022-01-31 16:23:45,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-31 16:23:45,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:45,944 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:45,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:23:45,944 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:45,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash -136188286, now seen corresponding path program 1 times [2022-01-31 16:23:45,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:45,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647628792] [2022-01-31 16:23:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:45,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:23:46,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:46,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647628792] [2022-01-31 16:23:46,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647628792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:46,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:46,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:46,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589277261] [2022-01-31 16:23:46,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:46,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:46,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:46,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:46,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:46,059 INFO L87 Difference]: Start difference. First operand 230 states and 373 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:47,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:47,989 INFO L93 Difference]: Finished difference Result 305 states and 473 transitions. [2022-01-31 16:23:47,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:47,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-01-31 16:23:47,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:47,991 INFO L225 Difference]: With dead ends: 305 [2022-01-31 16:23:47,991 INFO L226 Difference]: Without dead ends: 305 [2022-01-31 16:23:47,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:47,992 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 142 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:47,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 16:23:47,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-31 16:23:47,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 230. [2022-01-31 16:23:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6266666666666667) internal successors, (366), 225 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) [2022-01-31 16:23:47,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 370 transitions. [2022-01-31 16:23:47,999 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 370 transitions. Word has length 91 [2022-01-31 16:23:47,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:47,999 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 370 transitions. [2022-01-31 16:23:47,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:48,000 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 370 transitions. [2022-01-31 16:23:48,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-31 16:23:48,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:48,001 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2022-01-31 16:23:48,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:23:48,001 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:48,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:48,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1894337090, now seen corresponding path program 1 times [2022-01-31 16:23:48,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:48,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934287215] [2022-01-31 16:23:48,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:48,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:23:48,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:48,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934287215] [2022-01-31 16:23:48,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934287215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:48,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:48,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:48,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060147607] [2022-01-31 16:23:48,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:48,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:48,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:48,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:48,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:48,129 INFO L87 Difference]: Start difference. First operand 230 states and 370 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:49,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:51,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:51,402 INFO L93 Difference]: Finished difference Result 244 states and 387 transitions. [2022-01-31 16:23:51,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:51,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-01-31 16:23:51,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:51,403 INFO L225 Difference]: With dead ends: 244 [2022-01-31 16:23:51,403 INFO L226 Difference]: Without dead ends: 244 [2022-01-31 16:23:51,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:51,404 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:51,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 471 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:23:51,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-01-31 16:23:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 230. [2022-01-31 16:23:51,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6222222222222222) internal successors, (365), 225 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:51,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 369 transitions. [2022-01-31 16:23:51,410 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 369 transitions. Word has length 91 [2022-01-31 16:23:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:51,410 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 369 transitions. [2022-01-31 16:23:51,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 369 transitions. [2022-01-31 16:23:51,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-31 16:23:51,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:51,411 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:23:51,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:23:51,412 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:51,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1071343838, now seen corresponding path program 1 times [2022-01-31 16:23:51,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:51,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929768129] [2022-01-31 16:23:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:51,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:51,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:51,515 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:23:51,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:51,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929768129] [2022-01-31 16:23:51,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929768129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:51,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:51,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:51,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298790965] [2022-01-31 16:23:51,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:51,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:51,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:51,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:51,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:51,517 INFO L87 Difference]: Start difference. First operand 230 states and 369 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:55,179 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 [] [2022-01-31 16:23:55,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:55,514 INFO L93 Difference]: Finished difference Result 243 states and 385 transitions. [2022-01-31 16:23:55,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:55,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-01-31 16:23:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:55,516 INFO L225 Difference]: With dead ends: 243 [2022-01-31 16:23:55,516 INFO L226 Difference]: Without dead ends: 243 [2022-01-31 16:23:55,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:55,517 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 18 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:55,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 16:23:55,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-01-31 16:23:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 230. [2022-01-31 16:23:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6177777777777778) internal successors, (364), 225 states have internal predecessors, (364), 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) [2022-01-31 16:23:55,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 368 transitions. [2022-01-31 16:23:55,522 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 368 transitions. Word has length 91 [2022-01-31 16:23:55,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:55,522 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 368 transitions. [2022-01-31 16:23:55,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:55,523 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 368 transitions. [2022-01-31 16:23:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-31 16:23:55,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:55,524 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:55,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:23:55,524 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:55,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:55,524 INFO L85 PathProgramCache]: Analyzing trace with hash 951939982, now seen corresponding path program 1 times [2022-01-31 16:23:55,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:55,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033932468] [2022-01-31 16:23:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:55,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:55,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:23:55,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:55,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033932468] [2022-01-31 16:23:55,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033932468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:55,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:55,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:55,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766590332] [2022-01-31 16:23:55,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:55,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:55,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:55,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:55,664 INFO L87 Difference]: Start difference. First operand 230 states and 368 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:58,097 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 [] [2022-01-31 16:23:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:59,315 INFO L93 Difference]: Finished difference Result 243 states and 384 transitions. [2022-01-31 16:23:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:59,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-01-31 16:23:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:59,317 INFO L225 Difference]: With dead ends: 243 [2022-01-31 16:23:59,317 INFO L226 Difference]: Without dead ends: 243 [2022-01-31 16:23:59,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:59,318 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 22 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:59,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 473 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:23:59,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-01-31 16:23:59,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 230. [2022-01-31 16:23:59,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6133333333333333) internal successors, (363), 225 states have internal predecessors, (363), 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) [2022-01-31 16:23:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 367 transitions. [2022-01-31 16:23:59,323 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 367 transitions. Word has length 92 [2022-01-31 16:23:59,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:59,324 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 367 transitions. [2022-01-31 16:23:59,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 367 transitions. [2022-01-31 16:23:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-31 16:23:59,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:59,325 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:59,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:23:59,325 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:59,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:59,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2098623614, now seen corresponding path program 1 times [2022-01-31 16:23:59,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:59,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495191141] [2022-01-31 16:23:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:59,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:59,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:59,433 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:23:59,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:59,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495191141] [2022-01-31 16:23:59,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495191141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:59,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:59,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:59,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207601232] [2022-01-31 16:23:59,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:59,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:59,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:59,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:59,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:59,435 INFO L87 Difference]: Start difference. First operand 230 states and 367 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:01,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:01,462 INFO L93 Difference]: Finished difference Result 305 states and 467 transitions. [2022-01-31 16:24:01,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:01,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-01-31 16:24:01,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:01,464 INFO L225 Difference]: With dead ends: 305 [2022-01-31 16:24:01,464 INFO L226 Difference]: Without dead ends: 305 [2022-01-31 16:24:01,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:01,465 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 139 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:01,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-31 16:24:01,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-31 16:24:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 230. [2022-01-31 16:24:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6) internal successors, (360), 225 states have internal predecessors, (360), 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) [2022-01-31 16:24:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 364 transitions. [2022-01-31 16:24:01,471 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 364 transitions. Word has length 93 [2022-01-31 16:24:01,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:01,471 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 364 transitions. [2022-01-31 16:24:01,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 364 transitions. [2022-01-31 16:24:01,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-31 16:24:01,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:01,472 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:01,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:24:01,473 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:01,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:01,473 INFO L85 PathProgramCache]: Analyzing trace with hash 321944811, now seen corresponding path program 1 times [2022-01-31 16:24:01,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:01,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30450611] [2022-01-31 16:24:01,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:01,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:24:01,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:01,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30450611] [2022-01-31 16:24:01,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30450611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:01,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:01,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:01,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148396109] [2022-01-31 16:24:01,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:01,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:01,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:01,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:01,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:01,604 INFO L87 Difference]: Start difference. First operand 230 states and 364 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:04,349 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 [] [2022-01-31 16:24:04,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:04,771 INFO L93 Difference]: Finished difference Result 305 states and 464 transitions. [2022-01-31 16:24:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:04,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-01-31 16:24:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:04,773 INFO L225 Difference]: With dead ends: 305 [2022-01-31 16:24:04,773 INFO L226 Difference]: Without dead ends: 305 [2022-01-31 16:24:04,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:04,774 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 137 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:04,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 340 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:24:04,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-01-31 16:24:04,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 230. [2022-01-31 16:24:04,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5866666666666667) internal successors, (357), 225 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) [2022-01-31 16:24:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 361 transitions. [2022-01-31 16:24:04,780 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 361 transitions. Word has length 94 [2022-01-31 16:24:04,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:04,780 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 361 transitions. [2022-01-31 16:24:04,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:04,781 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 361 transitions. [2022-01-31 16:24:04,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-31 16:24:04,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:04,782 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:04,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:24:04,782 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:04,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:04,782 INFO L85 PathProgramCache]: Analyzing trace with hash 994781404, now seen corresponding path program 1 times [2022-01-31 16:24:04,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:04,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978054519] [2022-01-31 16:24:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:04,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:24:04,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:04,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978054519] [2022-01-31 16:24:04,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978054519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:04,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:04,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:04,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279236234] [2022-01-31 16:24:04,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:04,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:04,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:04,887 INFO L87 Difference]: Start difference. First operand 230 states and 361 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) [2022-01-31 16:24:07,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:07,592 INFO L93 Difference]: Finished difference Result 381 states and 598 transitions. [2022-01-31 16:24:07,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:07,593 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 94 [2022-01-31 16:24:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:07,595 INFO L225 Difference]: With dead ends: 381 [2022-01-31 16:24:07,595 INFO L226 Difference]: Without dead ends: 381 [2022-01-31 16:24:07,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:07,596 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:07,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 336 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 16:24:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-01-31 16:24:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 294. [2022-01-31 16:24:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 289 states have (on average 1.6159169550173011) internal successors, (467), 289 states have internal predecessors, (467), 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) [2022-01-31 16:24:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 471 transitions. [2022-01-31 16:24:07,602 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 471 transitions. Word has length 94 [2022-01-31 16:24:07,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:07,602 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 471 transitions. [2022-01-31 16:24:07,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:07,602 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 471 transitions. [2022-01-31 16:24:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-31 16:24:07,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:07,603 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:24:07,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:24:07,603 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:07,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1036101631, now seen corresponding path program 1 times [2022-01-31 16:24:07,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:07,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371288292] [2022-01-31 16:24:07,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:07,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-31 16:24:07,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:07,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371288292] [2022-01-31 16:24:07,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371288292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:07,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:07,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:07,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101590652] [2022-01-31 16:24:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:07,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:07,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:07,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:07,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:07,732 INFO L87 Difference]: Start difference. First operand 294 states and 471 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:10,145 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 [] [2022-01-31 16:24:11,665 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 [] [2022-01-31 16:24:12,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:12,134 INFO L93 Difference]: Finished difference Result 337 states and 533 transitions. [2022-01-31 16:24:12,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:12,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-01-31 16:24:12,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:12,136 INFO L225 Difference]: With dead ends: 337 [2022-01-31 16:24:12,136 INFO L226 Difference]: Without dead ends: 337 [2022-01-31 16:24:12,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:12,137 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 31 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:12,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 485 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:24:12,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-01-31 16:24:12,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 316. [2022-01-31 16:24:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.6141479099678457) internal successors, (502), 311 states have internal predecessors, (502), 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) [2022-01-31 16:24:12,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 506 transitions. [2022-01-31 16:24:12,143 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 506 transitions. Word has length 99 [2022-01-31 16:24:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:12,144 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 506 transitions. [2022-01-31 16:24:12,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:12,144 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 506 transitions. [2022-01-31 16:24:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-31 16:24:12,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:12,145 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:12,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:24:12,145 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:12,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash -800769138, now seen corresponding path program 1 times [2022-01-31 16:24:12,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:12,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284934239] [2022-01-31 16:24:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:12,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:24:12,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:12,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284934239] [2022-01-31 16:24:12,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284934239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:12,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:12,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:12,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627599165] [2022-01-31 16:24:12,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:12,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:12,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:12,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:12,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:12,252 INFO L87 Difference]: Start difference. First operand 316 states and 506 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:14,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:14,795 INFO L93 Difference]: Finished difference Result 337 states and 532 transitions. [2022-01-31 16:24:14,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:14,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-01-31 16:24:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:14,797 INFO L225 Difference]: With dead ends: 337 [2022-01-31 16:24:14,797 INFO L226 Difference]: Without dead ends: 337 [2022-01-31 16:24:14,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:14,798 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 36 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:14,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 485 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:24:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-01-31 16:24:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 316. [2022-01-31 16:24:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.6109324758842443) internal successors, (501), 311 states have internal predecessors, (501), 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) [2022-01-31 16:24:14,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 505 transitions. [2022-01-31 16:24:14,805 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 505 transitions. Word has length 107 [2022-01-31 16:24:14,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:14,805 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 505 transitions. [2022-01-31 16:24:14,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:14,805 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 505 transitions. [2022-01-31 16:24:14,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-31 16:24:14,806 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:14,807 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-01-31 16:24:14,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:24:14,807 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:14,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:14,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1979223486, now seen corresponding path program 1 times [2022-01-31 16:24:14,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:14,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875129999] [2022-01-31 16:24:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:14,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:24:14,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:14,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875129999] [2022-01-31 16:24:14,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875129999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:14,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:14,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:14,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777266560] [2022-01-31 16:24:14,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:14,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:14,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:14,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:14,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:14,915 INFO L87 Difference]: Start difference. First operand 316 states and 505 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:16,263 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 [] [2022-01-31 16:24:18,715 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 [] [2022-01-31 16:24:19,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:19,499 INFO L93 Difference]: Finished difference Result 335 states and 529 transitions. [2022-01-31 16:24:19,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:19,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-01-31 16:24:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:19,501 INFO L225 Difference]: With dead ends: 335 [2022-01-31 16:24:19,501 INFO L226 Difference]: Without dead ends: 335 [2022-01-31 16:24:19,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:19,505 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:19,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 489 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 16:24:19,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-01-31 16:24:19,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 316. [2022-01-31 16:24:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.607717041800643) internal successors, (500), 311 states have internal predecessors, (500), 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) [2022-01-31 16:24:19,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 504 transitions. [2022-01-31 16:24:19,512 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 504 transitions. Word has length 108 [2022-01-31 16:24:19,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:19,512 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 504 transitions. [2022-01-31 16:24:19,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 504 transitions. [2022-01-31 16:24:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-31 16:24:19,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:19,514 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:19,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:24:19,514 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash 2067859961, now seen corresponding path program 1 times [2022-01-31 16:24:19,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:19,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75332980] [2022-01-31 16:24:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:19,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-31 16:24:19,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:19,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75332980] [2022-01-31 16:24:19,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75332980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:19,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:19,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:19,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050413972] [2022-01-31 16:24:19,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:19,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:19,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:19,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:19,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:19,635 INFO L87 Difference]: Start difference. First operand 316 states and 504 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:22,627 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 [] [2022-01-31 16:24:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:23,768 INFO L93 Difference]: Finished difference Result 345 states and 543 transitions. [2022-01-31 16:24:23,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:23,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-01-31 16:24:23,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:23,770 INFO L225 Difference]: With dead ends: 345 [2022-01-31 16:24:23,770 INFO L226 Difference]: Without dead ends: 345 [2022-01-31 16:24:23,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:23,771 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 19 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:23,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 550 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:24:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-01-31 16:24:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 332. [2022-01-31 16:24:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.599388379204893) internal successors, (523), 327 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) [2022-01-31 16:24:23,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 527 transitions. [2022-01-31 16:24:23,778 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 527 transitions. Word has length 113 [2022-01-31 16:24:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:23,778 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 527 transitions. [2022-01-31 16:24:23,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 527 transitions. [2022-01-31 16:24:23,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-31 16:24:23,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:23,780 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:24:23,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:24:23,780 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash 814419321, now seen corresponding path program 1 times [2022-01-31 16:24:23,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:23,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396546614] [2022-01-31 16:24:23,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:23,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:23,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-31 16:24:23,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:23,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396546614] [2022-01-31 16:24:23,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396546614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:23,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:23,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:23,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999266992] [2022-01-31 16:24:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:23,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:23,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:23,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:23,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:23,905 INFO L87 Difference]: Start difference. First operand 332 states and 527 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:26,968 INFO L93 Difference]: Finished difference Result 406 states and 624 transitions. [2022-01-31 16:24:26,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:26,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-01-31 16:24:26,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:26,970 INFO L225 Difference]: With dead ends: 406 [2022-01-31 16:24:26,970 INFO L226 Difference]: Without dead ends: 406 [2022-01-31 16:24:26,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:26,971 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:26,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 326 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 16:24:26,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-01-31 16:24:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 332. [2022-01-31 16:24:26,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 327 states have (on average 1.584097859327217) internal successors, (518), 327 states have internal predecessors, (518), 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) [2022-01-31 16:24:26,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 522 transitions. [2022-01-31 16:24:26,978 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 522 transitions. Word has length 113 [2022-01-31 16:24:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:26,979 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 522 transitions. [2022-01-31 16:24:26,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:26,979 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 522 transitions. [2022-01-31 16:24:26,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-31 16:24:26,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:26,980 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:26,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:24:26,980 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1270943240, now seen corresponding path program 1 times [2022-01-31 16:24:26,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:26,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703494630] [2022-01-31 16:24:26,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:26,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:27,102 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-01-31 16:24:27,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:27,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703494630] [2022-01-31 16:24:27,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703494630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:27,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:27,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:24:27,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54004266] [2022-01-31 16:24:27,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:27,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:24:27,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:27,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:24:27,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:27,103 INFO L87 Difference]: Start difference. First operand 332 states and 522 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:30,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:30,066 INFO L93 Difference]: Finished difference Result 341 states and 533 transitions. [2022-01-31 16:24:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:24:30,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-01-31 16:24:30,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:30,068 INFO L225 Difference]: With dead ends: 341 [2022-01-31 16:24:30,068 INFO L226 Difference]: Without dead ends: 341 [2022-01-31 16:24:30,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:24:30,069 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 3 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:30,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 609 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:24:30,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-01-31 16:24:30,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2022-01-31 16:24:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5744047619047619) internal successors, (529), 336 states have internal predecessors, (529), 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) [2022-01-31 16:24:30,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 533 transitions. [2022-01-31 16:24:30,075 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 533 transitions. Word has length 114 [2022-01-31 16:24:30,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:30,075 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 533 transitions. [2022-01-31 16:24:30,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:30,075 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 533 transitions. [2022-01-31 16:24:30,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-31 16:24:30,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:30,076 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:30,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:24:30,077 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:30,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:30,077 INFO L85 PathProgramCache]: Analyzing trace with hash 111216116, now seen corresponding path program 1 times [2022-01-31 16:24:30,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:30,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759169456] [2022-01-31 16:24:30,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:30,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-01-31 16:24:30,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:30,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759169456] [2022-01-31 16:24:30,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759169456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:30,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:30,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:30,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001165313] [2022-01-31 16:24:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:30,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:30,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:30,183 INFO L87 Difference]: Start difference. First operand 341 states and 533 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:32,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:32,805 INFO L93 Difference]: Finished difference Result 358 states and 554 transitions. [2022-01-31 16:24:32,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:32,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-01-31 16:24:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:32,807 INFO L225 Difference]: With dead ends: 358 [2022-01-31 16:24:32,807 INFO L226 Difference]: Without dead ends: 358 [2022-01-31 16:24:32,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:32,808 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 35 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:32,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 493 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:24:32,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-01-31 16:24:32,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 341. [2022-01-31 16:24:32,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5714285714285714) internal successors, (528), 336 states have internal predecessors, (528), 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) [2022-01-31 16:24:32,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 532 transitions. [2022-01-31 16:24:32,814 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 532 transitions. Word has length 115 [2022-01-31 16:24:32,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:32,815 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 532 transitions. [2022-01-31 16:24:32,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:32,815 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 532 transitions. [2022-01-31 16:24:32,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-31 16:24:32,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:32,816 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:32,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:24:32,816 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:32,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:32,817 INFO L85 PathProgramCache]: Analyzing trace with hash -676854904, now seen corresponding path program 1 times [2022-01-31 16:24:32,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:32,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626682395] [2022-01-31 16:24:32,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:32,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-31 16:24:32,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:32,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626682395] [2022-01-31 16:24:32,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626682395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:32,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:32,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:32,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108337122] [2022-01-31 16:24:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:32,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:32,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:32,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:32,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:32,930 INFO L87 Difference]: Start difference. First operand 341 states and 532 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:34,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:36,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:37,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:37,900 INFO L93 Difference]: Finished difference Result 348 states and 541 transitions. [2022-01-31 16:24:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:37,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-01-31 16:24:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:37,902 INFO L225 Difference]: With dead ends: 348 [2022-01-31 16:24:37,902 INFO L226 Difference]: Without dead ends: 348 [2022-01-31 16:24:37,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:37,903 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 30 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:37,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 507 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 16:24:37,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-01-31 16:24:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-01-31 16:24:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.568452380952381) internal successors, (527), 336 states have internal predecessors, (527), 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) [2022-01-31 16:24:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 531 transitions. [2022-01-31 16:24:37,909 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 531 transitions. Word has length 121 [2022-01-31 16:24:37,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:37,909 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 531 transitions. [2022-01-31 16:24:37,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 531 transitions. [2022-01-31 16:24:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-31 16:24:37,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:37,910 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:37,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:24:37,910 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:37,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:37,911 INFO L85 PathProgramCache]: Analyzing trace with hash -494174528, now seen corresponding path program 1 times [2022-01-31 16:24:37,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:37,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927194582] [2022-01-31 16:24:37,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:37,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:24:38,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:38,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927194582] [2022-01-31 16:24:38,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927194582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:38,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:38,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:38,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238954989] [2022-01-31 16:24:38,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:38,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:38,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:38,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:38,029 INFO L87 Difference]: Start difference. First operand 341 states and 531 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:40,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:40,684 INFO L93 Difference]: Finished difference Result 464 states and 710 transitions. [2022-01-31 16:24:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:40,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-01-31 16:24:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:40,686 INFO L225 Difference]: With dead ends: 464 [2022-01-31 16:24:40,686 INFO L226 Difference]: Without dead ends: 464 [2022-01-31 16:24:40,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:40,687 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:40,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 326 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:24:40,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-01-31 16:24:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 378. [2022-01-31 16:24:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.579088471849866) internal successors, (589), 373 states have internal predecessors, (589), 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) [2022-01-31 16:24:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 593 transitions. [2022-01-31 16:24:40,694 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 593 transitions. Word has length 121 [2022-01-31 16:24:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:40,695 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 593 transitions. [2022-01-31 16:24:40,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 593 transitions. [2022-01-31 16:24:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-31 16:24:40,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:40,696 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:40,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:24:40,696 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:40,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:40,697 INFO L85 PathProgramCache]: Analyzing trace with hash 208718188, now seen corresponding path program 1 times [2022-01-31 16:24:40,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:40,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974170185] [2022-01-31 16:24:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:40,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:40,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:24:40,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:40,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974170185] [2022-01-31 16:24:40,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974170185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:40,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:40,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:40,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855596914] [2022-01-31 16:24:40,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:40,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:40,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:40,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:40,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:40,826 INFO L87 Difference]: Start difference. First operand 378 states and 593 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:41,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:44,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:45,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:45,048 INFO L93 Difference]: Finished difference Result 461 states and 704 transitions. [2022-01-31 16:24:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:45,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-01-31 16:24:45,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:45,050 INFO L225 Difference]: With dead ends: 461 [2022-01-31 16:24:45,050 INFO L226 Difference]: Without dead ends: 461 [2022-01-31 16:24:45,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:45,051 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 113 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:45,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 342 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:24:45,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-01-31 16:24:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 378. [2022-01-31 16:24:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5737265415549597) internal successors, (587), 373 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:45,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 591 transitions. [2022-01-31 16:24:45,057 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 591 transitions. Word has length 122 [2022-01-31 16:24:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:45,058 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 591 transitions. [2022-01-31 16:24:45,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 591 transitions. [2022-01-31 16:24:45,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-31 16:24:45,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:45,059 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:45,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:24:45,059 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:45,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:45,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1737440945, now seen corresponding path program 1 times [2022-01-31 16:24:45,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:45,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053472671] [2022-01-31 16:24:45,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:45,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:24:45,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:45,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053472671] [2022-01-31 16:24:45,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053472671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:45,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:45,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:45,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205440370] [2022-01-31 16:24:45,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:45,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:45,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:45,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:45,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:45,174 INFO L87 Difference]: Start difference. First operand 378 states and 591 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:47,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:49,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:49,270 INFO L93 Difference]: Finished difference Result 461 states and 699 transitions. [2022-01-31 16:24:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-01-31 16:24:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:49,272 INFO L225 Difference]: With dead ends: 461 [2022-01-31 16:24:49,272 INFO L226 Difference]: Without dead ends: 461 [2022-01-31 16:24:49,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:49,272 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 134 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:49,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:24:49,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-01-31 16:24:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 378. [2022-01-31 16:24:49,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5603217158176943) internal successors, (582), 373 states have internal predecessors, (582), 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) [2022-01-31 16:24:49,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 586 transitions. [2022-01-31 16:24:49,279 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 586 transitions. Word has length 129 [2022-01-31 16:24:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:49,279 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 586 transitions. [2022-01-31 16:24:49,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 586 transitions. [2022-01-31 16:24:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-31 16:24:49,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:49,281 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:49,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:24:49,281 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:49,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:49,281 INFO L85 PathProgramCache]: Analyzing trace with hash -951278431, now seen corresponding path program 1 times [2022-01-31 16:24:49,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:49,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172335948] [2022-01-31 16:24:49,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:49,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:49,388 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:24:49,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:49,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172335948] [2022-01-31 16:24:49,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172335948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:49,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:49,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:49,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314406046] [2022-01-31 16:24:49,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:49,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:49,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:49,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:49,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:49,390 INFO L87 Difference]: Start difference. First operand 378 states and 586 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) [2022-01-31 16:24:50,443 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 [] [2022-01-31 16:24:54,015 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 [] [2022-01-31 16:24:54,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:54,455 INFO L93 Difference]: Finished difference Result 461 states and 694 transitions. [2022-01-31 16:24:54,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:54,455 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 130 [2022-01-31 16:24:54,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:54,456 INFO L225 Difference]: With dead ends: 461 [2022-01-31 16:24:54,457 INFO L226 Difference]: Without dead ends: 461 [2022-01-31 16:24:54,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:54,457 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 133 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:54,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 326 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 16:24:54,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-01-31 16:24:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 378. [2022-01-31 16:24:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5469168900804289) internal successors, (577), 373 states have internal predecessors, (577), 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) [2022-01-31 16:24:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 581 transitions. [2022-01-31 16:24:54,464 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 581 transitions. Word has length 130 [2022-01-31 16:24:54,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:54,464 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 581 transitions. [2022-01-31 16:24:54,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 581 transitions. [2022-01-31 16:24:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-31 16:24:54,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:54,466 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:54,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:24:54,466 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:54,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:54,467 INFO L85 PathProgramCache]: Analyzing trace with hash 85923637, now seen corresponding path program 1 times [2022-01-31 16:24:54,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:54,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356252512] [2022-01-31 16:24:54,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:54,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:24:54,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:54,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356252512] [2022-01-31 16:24:54,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356252512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:54,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:54,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:54,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472782645] [2022-01-31 16:24:54,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:54,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:54,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:54,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:54,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:54,574 INFO L87 Difference]: Start difference. First operand 378 states and 581 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:57,728 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 [] [2022-01-31 16:24:59,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:59,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:59,707 INFO L93 Difference]: Finished difference Result 471 states and 714 transitions. [2022-01-31 16:24:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:59,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-01-31 16:24:59,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:59,709 INFO L225 Difference]: With dead ends: 471 [2022-01-31 16:24:59,709 INFO L226 Difference]: Without dead ends: 471 [2022-01-31 16:24:59,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:59,713 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 61 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:59,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 461 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 16:24:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-01-31 16:24:59,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 421. [2022-01-31 16:24:59,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5480769230769231) internal successors, (644), 416 states have internal predecessors, (644), 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) [2022-01-31 16:24:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 648 transitions. [2022-01-31 16:24:59,724 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 648 transitions. Word has length 130 [2022-01-31 16:24:59,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:59,724 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 648 transitions. [2022-01-31 16:24:59,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:59,725 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 648 transitions. [2022-01-31 16:24:59,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-31 16:24:59,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:59,726 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:59,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:24:59,726 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:59,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash 869302612, now seen corresponding path program 1 times [2022-01-31 16:24:59,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:59,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340154521] [2022-01-31 16:24:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:59,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-01-31 16:24:59,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:59,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340154521] [2022-01-31 16:24:59,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340154521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:59,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:59,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:59,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616395991] [2022-01-31 16:24:59,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:59,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:59,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:59,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:59,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:59,841 INFO L87 Difference]: Start difference. First operand 421 states and 648 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:02,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:02,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:02,743 INFO L93 Difference]: Finished difference Result 476 states and 724 transitions. [2022-01-31 16:25:02,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:02,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-01-31 16:25:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:02,745 INFO L225 Difference]: With dead ends: 476 [2022-01-31 16:25:02,745 INFO L226 Difference]: Without dead ends: 476 [2022-01-31 16:25:02,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:02,745 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:02,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 581 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:25:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-01-31 16:25:02,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 445. [2022-01-31 16:25:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5454545454545454) internal successors, (680), 440 states have internal predecessors, (680), 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) [2022-01-31 16:25:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 684 transitions. [2022-01-31 16:25:02,752 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 684 transitions. Word has length 130 [2022-01-31 16:25:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:02,753 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 684 transitions. [2022-01-31 16:25:02,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:02,753 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 684 transitions. [2022-01-31 16:25:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-31 16:25:02,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:02,754 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:02,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:25:02,754 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash 892461961, now seen corresponding path program 1 times [2022-01-31 16:25:02,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:02,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689673243] [2022-01-31 16:25:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:02,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:25:02,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:02,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689673243] [2022-01-31 16:25:02,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689673243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:02,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:02,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:02,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358072343] [2022-01-31 16:25:02,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:02,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:02,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:02,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:02,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:02,891 INFO L87 Difference]: Start difference. First operand 445 states and 684 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:05,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:05,577 INFO L93 Difference]: Finished difference Result 485 states and 737 transitions. [2022-01-31 16:25:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:05,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-01-31 16:25:05,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:05,579 INFO L225 Difference]: With dead ends: 485 [2022-01-31 16:25:05,579 INFO L226 Difference]: Without dead ends: 485 [2022-01-31 16:25:05,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:05,580 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 90 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:05,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 485 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 16:25:05,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-01-31 16:25:05,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 445. [2022-01-31 16:25:05,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5431818181818182) internal successors, (679), 440 states have internal predecessors, (679), 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) [2022-01-31 16:25:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 683 transitions. [2022-01-31 16:25:05,587 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 683 transitions. Word has length 143 [2022-01-31 16:25:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:05,587 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 683 transitions. [2022-01-31 16:25:05,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 683 transitions. [2022-01-31 16:25:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-31 16:25:05,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:05,588 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:05,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:25:05,588 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:05,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash 556207741, now seen corresponding path program 1 times [2022-01-31 16:25:05,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:05,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529164782] [2022-01-31 16:25:05,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:05,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:05,692 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:25:05,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:05,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529164782] [2022-01-31 16:25:05,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529164782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:05,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:05,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:05,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074743266] [2022-01-31 16:25:05,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:05,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:05,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:05,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:05,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:05,694 INFO L87 Difference]: Start difference. First operand 445 states and 683 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:07,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:09,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:09,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:09,823 INFO L93 Difference]: Finished difference Result 485 states and 736 transitions. [2022-01-31 16:25:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:09,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-01-31 16:25:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:09,825 INFO L225 Difference]: With dead ends: 485 [2022-01-31 16:25:09,825 INFO L226 Difference]: Without dead ends: 485 [2022-01-31 16:25:09,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:09,826 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 70 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:09,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 487 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:25:09,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-01-31 16:25:09,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 445. [2022-01-31 16:25:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.540909090909091) internal successors, (678), 440 states have internal predecessors, (678), 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) [2022-01-31 16:25:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 682 transitions. [2022-01-31 16:25:09,832 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 682 transitions. Word has length 143 [2022-01-31 16:25:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:09,832 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 682 transitions. [2022-01-31 16:25:09,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 682 transitions. [2022-01-31 16:25:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-31 16:25:09,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:09,834 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:09,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:25:09,834 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:09,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1568154570, now seen corresponding path program 1 times [2022-01-31 16:25:09,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:09,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695966739] [2022-01-31 16:25:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:09,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:25:09,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:09,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695966739] [2022-01-31 16:25:09,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695966739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:09,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:09,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:09,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312953132] [2022-01-31 16:25:09,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:09,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:09,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:09,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:09,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:09,942 INFO L87 Difference]: Start difference. First operand 445 states and 682 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:12,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:13,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:13,171 INFO L93 Difference]: Finished difference Result 466 states and 709 transitions. [2022-01-31 16:25:13,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:13,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-01-31 16:25:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:13,173 INFO L225 Difference]: With dead ends: 466 [2022-01-31 16:25:13,173 INFO L226 Difference]: Without dead ends: 466 [2022-01-31 16:25:13,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:13,174 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 46 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:13,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 581 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 16:25:13,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-01-31 16:25:13,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 445. [2022-01-31 16:25:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5386363636363636) internal successors, (677), 440 states have internal predecessors, (677), 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) [2022-01-31 16:25:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 681 transitions. [2022-01-31 16:25:13,181 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 681 transitions. Word has length 143 [2022-01-31 16:25:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:13,181 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 681 transitions. [2022-01-31 16:25:13,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 681 transitions. [2022-01-31 16:25:13,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 16:25:13,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:13,182 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:13,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 16:25:13,182 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:13,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1299950139, now seen corresponding path program 1 times [2022-01-31 16:25:13,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:13,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854030519] [2022-01-31 16:25:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:13,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:25:13,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:13,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854030519] [2022-01-31 16:25:13,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854030519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:13,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:13,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:13,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404761133] [2022-01-31 16:25:13,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:13,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:13,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:13,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:13,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:13,315 INFO L87 Difference]: Start difference. First operand 445 states and 681 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:16,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:16,062 INFO L93 Difference]: Finished difference Result 475 states and 721 transitions. [2022-01-31 16:25:16,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:16,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-01-31 16:25:16,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:16,064 INFO L225 Difference]: With dead ends: 475 [2022-01-31 16:25:16,064 INFO L226 Difference]: Without dead ends: 475 [2022-01-31 16:25:16,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:16,065 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 79 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:16,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 477 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 16:25:16,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-01-31 16:25:16,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 445. [2022-01-31 16:25:16,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5363636363636364) internal successors, (676), 440 states have internal predecessors, (676), 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) [2022-01-31 16:25:16,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 680 transitions. [2022-01-31 16:25:16,072 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 680 transitions. Word has length 144 [2022-01-31 16:25:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:16,072 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 680 transitions. [2022-01-31 16:25:16,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:16,072 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 680 transitions. [2022-01-31 16:25:16,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 16:25:16,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:16,073 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:16,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 16:25:16,074 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:16,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:16,074 INFO L85 PathProgramCache]: Analyzing trace with hash 2040430962, now seen corresponding path program 1 times [2022-01-31 16:25:16,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:16,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525942999] [2022-01-31 16:25:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:16,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:25:16,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:16,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525942999] [2022-01-31 16:25:16,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525942999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:16,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:16,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:16,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339481099] [2022-01-31 16:25:16,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:16,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:16,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:16,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:16,184 INFO L87 Difference]: Start difference. First operand 445 states and 680 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:18,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:19,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:19,080 INFO L93 Difference]: Finished difference Result 528 states and 787 transitions. [2022-01-31 16:25:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:19,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-01-31 16:25:19,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:19,084 INFO L225 Difference]: With dead ends: 528 [2022-01-31 16:25:19,084 INFO L226 Difference]: Without dead ends: 528 [2022-01-31 16:25:19,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:19,085 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 118 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:19,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 342 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:25:19,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-01-31 16:25:19,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 445. [2022-01-31 16:25:19,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5227272727272727) internal successors, (670), 440 states have internal predecessors, (670), 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) [2022-01-31 16:25:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 674 transitions. [2022-01-31 16:25:19,091 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 674 transitions. Word has length 144 [2022-01-31 16:25:19,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:19,092 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 674 transitions. [2022-01-31 16:25:19,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:19,092 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 674 transitions. [2022-01-31 16:25:19,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 16:25:19,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:19,093 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:19,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:25:19,093 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:19,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:19,094 INFO L85 PathProgramCache]: Analyzing trace with hash 771584538, now seen corresponding path program 1 times [2022-01-31 16:25:19,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:19,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932019184] [2022-01-31 16:25:19,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:19,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:25:19,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:19,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932019184] [2022-01-31 16:25:19,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932019184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:19,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:19,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:19,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116007592] [2022-01-31 16:25:19,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:19,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:19,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:19,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:19,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:19,207 INFO L87 Difference]: Start difference. First operand 445 states and 674 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:21,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:21,498 INFO L93 Difference]: Finished difference Result 456 states and 688 transitions. [2022-01-31 16:25:21,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:21,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-01-31 16:25:21,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:21,499 INFO L225 Difference]: With dead ends: 456 [2022-01-31 16:25:21,499 INFO L226 Difference]: Without dead ends: 456 [2022-01-31 16:25:21,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:21,500 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 36 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:21,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 567 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:25:21,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-01-31 16:25:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 445. [2022-01-31 16:25:21,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5204545454545455) internal successors, (669), 440 states have internal predecessors, (669), 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) [2022-01-31 16:25:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 673 transitions. [2022-01-31 16:25:21,523 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 673 transitions. Word has length 144 [2022-01-31 16:25:21,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:21,524 INFO L470 AbstractCegarLoop]: Abstraction has 445 states and 673 transitions. [2022-01-31 16:25:21,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 673 transitions. [2022-01-31 16:25:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-31 16:25:21,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:21,525 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:21,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 16:25:21,525 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:21,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:21,525 INFO L85 PathProgramCache]: Analyzing trace with hash -715304230, now seen corresponding path program 1 times [2022-01-31 16:25:21,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:21,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953468177] [2022-01-31 16:25:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:21,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:25:21,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:21,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953468177] [2022-01-31 16:25:21,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953468177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:21,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:21,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:21,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968341100] [2022-01-31 16:25:21,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:21,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:21,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:21,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:21,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:21,646 INFO L87 Difference]: Start difference. First operand 445 states and 673 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:24,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:24,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:24,621 INFO L93 Difference]: Finished difference Result 568 states and 843 transitions. [2022-01-31 16:25:24,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:24,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-01-31 16:25:24,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:24,623 INFO L225 Difference]: With dead ends: 568 [2022-01-31 16:25:24,623 INFO L226 Difference]: Without dead ends: 568 [2022-01-31 16:25:24,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:24,623 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 120 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:24,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 342 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 16:25:24,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-01-31 16:25:24,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 473. [2022-01-31 16:25:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.5128205128205128) internal successors, (708), 468 states have internal predecessors, (708), 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) [2022-01-31 16:25:24,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 712 transitions. [2022-01-31 16:25:24,638 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 712 transitions. Word has length 146 [2022-01-31 16:25:24,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:24,638 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 712 transitions. [2022-01-31 16:25:24,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:24,638 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 712 transitions. [2022-01-31 16:25:24,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:25:24,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:24,640 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:24,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 16:25:24,640 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:24,641 INFO L85 PathProgramCache]: Analyzing trace with hash 220917447, now seen corresponding path program 1 times [2022-01-31 16:25:24,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:24,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851184102] [2022-01-31 16:25:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:24,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:25:24,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:24,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851184102] [2022-01-31 16:25:24,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851184102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:24,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:24,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:24,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577148523] [2022-01-31 16:25:24,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:24,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:24,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:24,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:24,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:24,758 INFO L87 Difference]: Start difference. First operand 473 states and 712 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:27,379 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 [] [2022-01-31 16:25:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:29,001 INFO L93 Difference]: Finished difference Result 493 states and 737 transitions. [2022-01-31 16:25:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:25:29,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:29,003 INFO L225 Difference]: With dead ends: 493 [2022-01-31 16:25:29,003 INFO L226 Difference]: Without dead ends: 493 [2022-01-31 16:25:29,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:29,003 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 50 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:29,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 499 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:25:29,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-01-31 16:25:29,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 473. [2022-01-31 16:25:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.5106837606837606) internal successors, (707), 468 states have internal predecessors, (707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:29,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 711 transitions. [2022-01-31 16:25:29,009 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 711 transitions. Word has length 147 [2022-01-31 16:25:29,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:29,009 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 711 transitions. [2022-01-31 16:25:29,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:29,010 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 711 transitions. [2022-01-31 16:25:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-31 16:25:29,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:29,011 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:29,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 16:25:29,011 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:29,011 INFO L85 PathProgramCache]: Analyzing trace with hash 868976307, now seen corresponding path program 1 times [2022-01-31 16:25:29,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:29,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838754612] [2022-01-31 16:25:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:29,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:29,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:25:29,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:29,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838754612] [2022-01-31 16:25:29,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838754612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:29,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:29,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:29,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492920946] [2022-01-31 16:25:29,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:29,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:29,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:29,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:29,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:29,116 INFO L87 Difference]: Start difference. First operand 473 states and 711 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:31,071 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 [] [2022-01-31 16:25:33,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:33,057 INFO L93 Difference]: Finished difference Result 493 states and 736 transitions. [2022-01-31 16:25:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:33,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-01-31 16:25:33,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:33,059 INFO L225 Difference]: With dead ends: 493 [2022-01-31 16:25:33,059 INFO L226 Difference]: Without dead ends: 493 [2022-01-31 16:25:33,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:33,059 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 54 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:33,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 509 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:25:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-01-31 16:25:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 473. [2022-01-31 16:25:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.5085470085470085) internal successors, (706), 468 states have internal predecessors, (706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 710 transitions. [2022-01-31 16:25:33,066 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 710 transitions. Word has length 152 [2022-01-31 16:25:33,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:33,066 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 710 transitions. [2022-01-31 16:25:33,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 710 transitions. [2022-01-31 16:25:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-31 16:25:33,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:33,068 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:33,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 16:25:33,068 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:33,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1563623314, now seen corresponding path program 1 times [2022-01-31 16:25:33,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:33,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831204086] [2022-01-31 16:25:33,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:33,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:25:33,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:33,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831204086] [2022-01-31 16:25:33,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831204086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:33,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:33,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:25:33,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322574220] [2022-01-31 16:25:33,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:33,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:25:33,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:25:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:25:33,180 INFO L87 Difference]: Start difference. First operand 473 states and 710 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:34,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:34,760 INFO L93 Difference]: Finished difference Result 913 states and 1375 transitions. [2022-01-31 16:25:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:25:34,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-01-31 16:25:34,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:34,762 INFO L225 Difference]: With dead ends: 913 [2022-01-31 16:25:34,762 INFO L226 Difference]: Without dead ends: 913 [2022-01-31 16:25:34,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:25:34,763 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 129 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:34,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 437 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 16:25:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-01-31 16:25:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 911. [2022-01-31 16:25:34,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 906 states have (on average 1.5121412803532008) internal successors, (1370), 906 states have internal predecessors, (1370), 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) [2022-01-31 16:25:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1374 transitions. [2022-01-31 16:25:34,774 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1374 transitions. Word has length 152 [2022-01-31 16:25:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:34,774 INFO L470 AbstractCegarLoop]: Abstraction has 911 states and 1374 transitions. [2022-01-31 16:25:34,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1374 transitions. [2022-01-31 16:25:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-31 16:25:34,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:34,776 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:34,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 16:25:34,777 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:34,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:34,777 INFO L85 PathProgramCache]: Analyzing trace with hash -895501135, now seen corresponding path program 1 times [2022-01-31 16:25:34,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:34,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130375845] [2022-01-31 16:25:34,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:34,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:34,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-01-31 16:25:34,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:34,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130375845] [2022-01-31 16:25:34,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130375845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:34,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:34,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:25:34,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551746048] [2022-01-31 16:25:34,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:34,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:25:34,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:34,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:25:34,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:25:34,867 INFO L87 Difference]: Start difference. First operand 911 states and 1374 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:36,747 INFO L93 Difference]: Finished difference Result 938 states and 1409 transitions. [2022-01-31 16:25:36,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:25:36,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-01-31 16:25:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:36,751 INFO L225 Difference]: With dead ends: 938 [2022-01-31 16:25:36,751 INFO L226 Difference]: Without dead ends: 938 [2022-01-31 16:25:36,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:25:36,751 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:36,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 16:25:36,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-01-31 16:25:36,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2022-01-31 16:25:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 933 states have (on average 1.5058949624866023) internal successors, (1405), 933 states have internal predecessors, (1405), 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) [2022-01-31 16:25:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1409 transitions. [2022-01-31 16:25:36,767 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1409 transitions. Word has length 152 [2022-01-31 16:25:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:36,767 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1409 transitions. [2022-01-31 16:25:36,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1409 transitions. [2022-01-31 16:25:36,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-31 16:25:36,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:36,769 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:36,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 16:25:36,770 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:36,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:36,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1110330288, now seen corresponding path program 1 times [2022-01-31 16:25:36,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:36,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452904475] [2022-01-31 16:25:36,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:36,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-31 16:25:36,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:36,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452904475] [2022-01-31 16:25:36,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452904475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:36,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:36,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:25:36,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401518910] [2022-01-31 16:25:36,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:36,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:25:36,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:36,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:25:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:25:36,902 INFO L87 Difference]: Start difference. First operand 938 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:38,987 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 [] [2022-01-31 16:25:39,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:39,694 INFO L93 Difference]: Finished difference Result 940 states and 1411 transitions. [2022-01-31 16:25:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:25:39,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-01-31 16:25:39,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:39,697 INFO L225 Difference]: With dead ends: 940 [2022-01-31 16:25:39,697 INFO L226 Difference]: Without dead ends: 940 [2022-01-31 16:25:39,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:25:39,698 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:39,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 16:25:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2022-01-31 16:25:39,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2022-01-31 16:25:39,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.504812834224599) internal successors, (1407), 935 states have internal predecessors, (1407), 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) [2022-01-31 16:25:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1411 transitions. [2022-01-31 16:25:39,707 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1411 transitions. Word has length 152 [2022-01-31 16:25:39,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:39,708 INFO L470 AbstractCegarLoop]: Abstraction has 940 states and 1411 transitions. [2022-01-31 16:25:39,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:39,708 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1411 transitions. [2022-01-31 16:25:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-31 16:25:39,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:39,710 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:39,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 16:25:39,710 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:39,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:39,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1906476963, now seen corresponding path program 1 times [2022-01-31 16:25:39,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:39,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717992948] [2022-01-31 16:25:39,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:39,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-01-31 16:25:39,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:39,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717992948] [2022-01-31 16:25:39,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717992948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:39,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:39,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:39,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716002371] [2022-01-31 16:25:39,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:39,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:39,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:39,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:39,820 INFO L87 Difference]: Start difference. First operand 940 states and 1411 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:41,829 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 [] [2022-01-31 16:25:42,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:42,238 INFO L93 Difference]: Finished difference Result 981 states and 1460 transitions. [2022-01-31 16:25:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:42,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-01-31 16:25:42,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:42,242 INFO L225 Difference]: With dead ends: 981 [2022-01-31 16:25:42,242 INFO L226 Difference]: Without dead ends: 981 [2022-01-31 16:25:42,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:42,243 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 42 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:42,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 507 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:25:42,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-01-31 16:25:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 940. [2022-01-31 16:25:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 935 states have (on average 1.5026737967914439) internal successors, (1405), 935 states have internal predecessors, (1405), 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) [2022-01-31 16:25:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1409 transitions. [2022-01-31 16:25:42,254 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1409 transitions. Word has length 153 [2022-01-31 16:25:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:42,254 INFO L470 AbstractCegarLoop]: Abstraction has 940 states and 1409 transitions. [2022-01-31 16:25:42,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1409 transitions. [2022-01-31 16:25:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-31 16:25:42,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:42,256 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:42,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 16:25:42,257 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:42,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:42,257 INFO L85 PathProgramCache]: Analyzing trace with hash 282794031, now seen corresponding path program 1 times [2022-01-31 16:25:42,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:42,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246487361] [2022-01-31 16:25:42,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:42,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-01-31 16:25:42,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:42,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246487361] [2022-01-31 16:25:42,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246487361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:42,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:42,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:42,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234187739] [2022-01-31 16:25:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:42,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:42,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:42,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:42,373 INFO L87 Difference]: Start difference. First operand 940 states and 1409 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:43,407 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 [] [2022-01-31 16:25:45,422 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 [] [2022-01-31 16:25:47,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:47,018 INFO L93 Difference]: Finished difference Result 1059 states and 1574 transitions. [2022-01-31 16:25:47,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:47,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-01-31 16:25:47,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:47,021 INFO L225 Difference]: With dead ends: 1059 [2022-01-31 16:25:47,022 INFO L226 Difference]: Without dead ends: 1059 [2022-01-31 16:25:47,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:47,022 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 37 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:47,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 553 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 16:25:47,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-01-31 16:25:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 992. [2022-01-31 16:25:47,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.5045592705167172) internal successors, (1485), 987 states have internal predecessors, (1485), 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) [2022-01-31 16:25:47,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1489 transitions. [2022-01-31 16:25:47,034 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1489 transitions. Word has length 153 [2022-01-31 16:25:47,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:47,035 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1489 transitions. [2022-01-31 16:25:47,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:47,035 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1489 transitions. [2022-01-31 16:25:47,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 16:25:47,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:47,037 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:47,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 16:25:47,037 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:47,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:47,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1671067034, now seen corresponding path program 1 times [2022-01-31 16:25:47,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:47,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442587571] [2022-01-31 16:25:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:47,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:47,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:47,184 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-01-31 16:25:47,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:47,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442587571] [2022-01-31 16:25:47,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442587571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:47,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:47,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:47,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337113622] [2022-01-31 16:25:47,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:47,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:47,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:47,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:47,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:47,188 INFO L87 Difference]: Start difference. First operand 992 states and 1489 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:50,912 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 [] [2022-01-31 16:25:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:51,306 INFO L93 Difference]: Finished difference Result 1029 states and 1534 transitions. [2022-01-31 16:25:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:51,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-01-31 16:25:51,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:51,309 INFO L225 Difference]: With dead ends: 1029 [2022-01-31 16:25:51,310 INFO L226 Difference]: Without dead ends: 1029 [2022-01-31 16:25:51,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:51,310 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 39 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:51,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:25:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-01-31 16:25:51,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 992. [2022-01-31 16:25:51,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.502532928064843) internal successors, (1483), 987 states have internal predecessors, (1483), 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) [2022-01-31 16:25:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1487 transitions. [2022-01-31 16:25:51,321 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1487 transitions. Word has length 154 [2022-01-31 16:25:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:51,322 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1487 transitions. [2022-01-31 16:25:51,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1487 transitions. [2022-01-31 16:25:51,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-31 16:25:51,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:51,324 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:51,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 16:25:51,324 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:51,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:51,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1414324568, now seen corresponding path program 1 times [2022-01-31 16:25:51,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:51,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704453135] [2022-01-31 16:25:51,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:51,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:51,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:25:51,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:51,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704453135] [2022-01-31 16:25:51,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704453135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:51,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:51,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:51,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363256717] [2022-01-31 16:25:51,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:51,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:51,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:51,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:51,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:51,437 INFO L87 Difference]: Start difference. First operand 992 states and 1487 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:53,539 INFO L93 Difference]: Finished difference Result 1155 states and 1691 transitions. [2022-01-31 16:25:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:53,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-01-31 16:25:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:53,542 INFO L225 Difference]: With dead ends: 1155 [2022-01-31 16:25:53,542 INFO L226 Difference]: Without dead ends: 1155 [2022-01-31 16:25:53,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:53,543 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:53,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 358 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-31 16:25:53,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-01-31 16:25:53,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 992. [2022-01-31 16:25:53,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.4883485309017224) internal successors, (1469), 987 states have internal predecessors, (1469), 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) [2022-01-31 16:25:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1473 transitions. [2022-01-31 16:25:53,555 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1473 transitions. Word has length 159 [2022-01-31 16:25:53,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:53,555 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1473 transitions. [2022-01-31 16:25:53,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:53,555 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1473 transitions. [2022-01-31 16:25:53,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-31 16:25:53,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:53,557 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:53,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 16:25:53,558 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:53,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:53,558 INFO L85 PathProgramCache]: Analyzing trace with hash 293481995, now seen corresponding path program 1 times [2022-01-31 16:25:53,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:53,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584352251] [2022-01-31 16:25:53,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:53,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:53,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:25:53,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:53,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584352251] [2022-01-31 16:25:53,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584352251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:53,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:53,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:53,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000633660] [2022-01-31 16:25:53,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:53,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:53,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:53,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:53,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:53,697 INFO L87 Difference]: Start difference. First operand 992 states and 1473 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:55,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:56,946 INFO L93 Difference]: Finished difference Result 1155 states and 1677 transitions. [2022-01-31 16:25:56,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:56,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-01-31 16:25:56,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:56,949 INFO L225 Difference]: With dead ends: 1155 [2022-01-31 16:25:56,949 INFO L226 Difference]: Without dead ends: 1155 [2022-01-31 16:25:56,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:56,950 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 121 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:56,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 326 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 16:25:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-01-31 16:25:56,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 992. [2022-01-31 16:25:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 987 states have (on average 1.4741641337386018) internal successors, (1455), 987 states have internal predecessors, (1455), 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) [2022-01-31 16:25:56,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1459 transitions. [2022-01-31 16:25:56,960 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1459 transitions. Word has length 160 [2022-01-31 16:25:56,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:56,960 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1459 transitions. [2022-01-31 16:25:56,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:56,961 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1459 transitions. [2022-01-31 16:25:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-31 16:25:56,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:56,963 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-01-31 16:25:56,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 16:25:56,963 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:56,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:56,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1842738854, now seen corresponding path program 1 times [2022-01-31 16:25:56,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:56,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156302171] [2022-01-31 16:25:56,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:56,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:57,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:25:57,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:57,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156302171] [2022-01-31 16:25:57,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156302171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:57,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:57,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:57,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666750545] [2022-01-31 16:25:57,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:57,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:57,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:57,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:57,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:57,077 INFO L87 Difference]: Start difference. First operand 992 states and 1459 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:00,012 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 [] [2022-01-31 16:26:02,031 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 [] [2022-01-31 16:26:02,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:02,756 INFO L93 Difference]: Finished difference Result 1235 states and 1791 transitions. [2022-01-31 16:26:02,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:02,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-01-31 16:26:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:02,759 INFO L225 Difference]: With dead ends: 1235 [2022-01-31 16:26:02,759 INFO L226 Difference]: Without dead ends: 1235 [2022-01-31 16:26:02,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:02,760 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 114 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:02,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 326 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 468 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 16:26:02,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2022-01-31 16:26:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1058. [2022-01-31 16:26:02,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4710351377018043) internal successors, (1549), 1053 states have internal predecessors, (1549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:02,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1553 transitions. [2022-01-31 16:26:02,771 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1553 transitions. Word has length 162 [2022-01-31 16:26:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:02,772 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1553 transitions. [2022-01-31 16:26:02,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1553 transitions. [2022-01-31 16:26:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-31 16:26:02,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:02,774 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 16:26:02,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 16:26:02,774 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:02,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1186117070, now seen corresponding path program 1 times [2022-01-31 16:26:02,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:02,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858620152] [2022-01-31 16:26:02,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:02,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:02,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:26:02,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:02,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858620152] [2022-01-31 16:26:02,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858620152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:02,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:02,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:02,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480024208] [2022-01-31 16:26:02,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:02,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:02,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:02,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:02,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:02,886 INFO L87 Difference]: Start difference. First operand 1058 states and 1553 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:05,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:07,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:07,211 INFO L93 Difference]: Finished difference Result 1221 states and 1763 transitions. [2022-01-31 16:26:07,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:07,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-01-31 16:26:07,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:07,214 INFO L225 Difference]: With dead ends: 1221 [2022-01-31 16:26:07,214 INFO L226 Difference]: Without dead ends: 1221 [2022-01-31 16:26:07,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:07,215 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 113 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:07,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:26:07,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2022-01-31 16:26:07,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1058. [2022-01-31 16:26:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.46343779677113) internal successors, (1541), 1053 states have internal predecessors, (1541), 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) [2022-01-31 16:26:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1545 transitions. [2022-01-31 16:26:07,223 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1545 transitions. Word has length 163 [2022-01-31 16:26:07,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:07,224 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1545 transitions. [2022-01-31 16:26:07,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1545 transitions. [2022-01-31 16:26:07,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-31 16:26:07,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:07,226 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:07,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 16:26:07,226 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash -532071860, now seen corresponding path program 1 times [2022-01-31 16:26:07,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:07,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402893288] [2022-01-31 16:26:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:07,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:07,345 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-01-31 16:26:07,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:07,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402893288] [2022-01-31 16:26:07,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402893288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:07,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:07,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:07,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416058471] [2022-01-31 16:26:07,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:07,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:07,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:07,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:07,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:07,347 INFO L87 Difference]: Start difference. First operand 1058 states and 1545 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) [2022-01-31 16:26:08,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:11,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:11,558 INFO L93 Difference]: Finished difference Result 1201 states and 1721 transitions. [2022-01-31 16:26:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:11,558 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 165 [2022-01-31 16:26:11,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:11,562 INFO L225 Difference]: With dead ends: 1201 [2022-01-31 16:26:11,562 INFO L226 Difference]: Without dead ends: 1201 [2022-01-31 16:26:11,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:11,563 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 135 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:11,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 336 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:26:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-01-31 16:26:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1058. [2022-01-31 16:26:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.446343779677113) internal successors, (1523), 1053 states have internal predecessors, (1523), 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) [2022-01-31 16:26:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1527 transitions. [2022-01-31 16:26:11,574 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1527 transitions. Word has length 165 [2022-01-31 16:26:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:11,575 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1527 transitions. [2022-01-31 16:26:11,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1527 transitions. [2022-01-31 16:26:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-31 16:26:11,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:11,576 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:11,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 16:26:11,577 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:11,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:11,577 INFO L85 PathProgramCache]: Analyzing trace with hash 89074648, now seen corresponding path program 1 times [2022-01-31 16:26:11,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:11,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077331905] [2022-01-31 16:26:11,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:11,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-01-31 16:26:11,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:11,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077331905] [2022-01-31 16:26:11,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077331905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:11,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:11,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:26:11,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746031798] [2022-01-31 16:26:11,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:11,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:26:11,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:11,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:26:11,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:11,717 INFO L87 Difference]: Start difference. First operand 1058 states and 1527 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:13,398 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 [] [2022-01-31 16:26:15,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:15,832 INFO L93 Difference]: Finished difference Result 1058 states and 1525 transitions. [2022-01-31 16:26:15,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 16:26:15,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-01-31 16:26:15,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:15,835 INFO L225 Difference]: With dead ends: 1058 [2022-01-31 16:26:15,835 INFO L226 Difference]: Without dead ends: 1058 [2022-01-31 16:26:15,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:26:15,835 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 143 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:15,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 354 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:26:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-01-31 16:26:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1058. [2022-01-31 16:26:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4444444444444444) internal successors, (1521), 1053 states have internal predecessors, (1521), 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) [2022-01-31 16:26:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1525 transitions. [2022-01-31 16:26:15,845 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1525 transitions. Word has length 166 [2022-01-31 16:26:15,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:15,845 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1525 transitions. [2022-01-31 16:26:15,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:15,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1525 transitions. [2022-01-31 16:26:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-31 16:26:15,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:15,847 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:15,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 16:26:15,847 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:15,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:15,860 INFO L85 PathProgramCache]: Analyzing trace with hash -522240028, now seen corresponding path program 1 times [2022-01-31 16:26:15,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:15,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78393747] [2022-01-31 16:26:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:15,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:15,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-01-31 16:26:15,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:15,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78393747] [2022-01-31 16:26:15,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78393747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:15,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:15,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:15,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093188894] [2022-01-31 16:26:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:15,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:15,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:15,977 INFO L87 Difference]: Start difference. First operand 1058 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:18,542 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 [] [2022-01-31 16:26:18,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:18,938 INFO L93 Difference]: Finished difference Result 1181 states and 1675 transitions. [2022-01-31 16:26:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:18,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-01-31 16:26:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:18,941 INFO L225 Difference]: With dead ends: 1181 [2022-01-31 16:26:18,941 INFO L226 Difference]: Without dead ends: 1181 [2022-01-31 16:26:18,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:18,941 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 125 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:18,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 348 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:26:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-01-31 16:26:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1058. [2022-01-31 16:26:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4273504273504274) internal successors, (1503), 1053 states have internal predecessors, (1503), 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) [2022-01-31 16:26:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1507 transitions. [2022-01-31 16:26:18,953 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1507 transitions. Word has length 169 [2022-01-31 16:26:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:18,953 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1507 transitions. [2022-01-31 16:26:18,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:18,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1507 transitions. [2022-01-31 16:26:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-31 16:26:18,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:18,955 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:18,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 16:26:18,956 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash -577869470, now seen corresponding path program 1 times [2022-01-31 16:26:18,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:18,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907949988] [2022-01-31 16:26:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:18,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:19,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-01-31 16:26:19,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:19,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907949988] [2022-01-31 16:26:19,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907949988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:19,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:19,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:26:19,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230186657] [2022-01-31 16:26:19,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:19,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:26:19,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:19,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:26:19,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:26:19,063 INFO L87 Difference]: Start difference. First operand 1058 states and 1507 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) [2022-01-31 16:26:20,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:21,680 INFO L93 Difference]: Finished difference Result 1558 states and 2222 transitions. [2022-01-31 16:26:21,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:26:21,681 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 [2022-01-31 16:26:21,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:21,682 INFO L225 Difference]: With dead ends: 1558 [2022-01-31 16:26:21,683 INFO L226 Difference]: Without dead ends: 1558 [2022-01-31 16:26:21,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:26:21,683 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:21,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 564 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:26:21,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2022-01-31 16:26:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2022-01-31 16:26:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1553 states have (on average 1.4282034771410175) internal successors, (2218), 1553 states have internal predecessors, (2218), 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) [2022-01-31 16:26:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2222 transitions. [2022-01-31 16:26:21,696 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2222 transitions. Word has length 171 [2022-01-31 16:26:21,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:21,697 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 2222 transitions. [2022-01-31 16:26:21,697 INFO L471 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) [2022-01-31 16:26:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2222 transitions. [2022-01-31 16:26:21,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-31 16:26:21,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:21,699 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:21,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 16:26:21,699 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:21,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:21,700 INFO L85 PathProgramCache]: Analyzing trace with hash 256687454, now seen corresponding path program 1 times [2022-01-31 16:26:21,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:21,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019764551] [2022-01-31 16:26:21,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:21,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:21,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:21,865 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:26:21,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:21,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019764551] [2022-01-31 16:26:21,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019764551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:21,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:21,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:26:21,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90369244] [2022-01-31 16:26:21,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:21,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:26:21,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:21,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:26:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:26:21,867 INFO L87 Difference]: Start difference. First operand 1558 states and 2222 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) [2022-01-31 16:26:22,999 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 [] [2022-01-31 16:26:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:24,105 INFO L93 Difference]: Finished difference Result 2023 states and 2885 transitions. [2022-01-31 16:26:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:26:24,105 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 [2022-01-31 16:26:24,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:24,108 INFO L225 Difference]: With dead ends: 2023 [2022-01-31 16:26:24,108 INFO L226 Difference]: Without dead ends: 2023 [2022-01-31 16:26:24,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:26:24,110 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:24,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 490 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 16:26:24,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2022-01-31 16:26:24,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 2019. [2022-01-31 16:26:24,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2014 states have (on average 1.428997020854022) internal successors, (2878), 2014 states have internal predecessors, (2878), 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) [2022-01-31 16:26:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2882 transitions. [2022-01-31 16:26:24,131 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2882 transitions. Word has length 172 [2022-01-31 16:26:24,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:24,131 INFO L470 AbstractCegarLoop]: Abstraction has 2019 states and 2882 transitions. [2022-01-31 16:26:24,131 INFO L471 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) [2022-01-31 16:26:24,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2882 transitions. [2022-01-31 16:26:24,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-31 16:26:24,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:24,134 INFO L514 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:24,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 16:26:24,134 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:24,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:24,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1935430171, now seen corresponding path program 1 times [2022-01-31 16:26:24,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:24,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762521203] [2022-01-31 16:26:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:24,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:24,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-01-31 16:26:24,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:24,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762521203] [2022-01-31 16:26:24,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762521203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:24,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:24,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:24,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664041357] [2022-01-31 16:26:24,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:24,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:24,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:24,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:24,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:24,264 INFO L87 Difference]: Start difference. First operand 2019 states and 2882 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:26,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:27,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:28,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:28,111 INFO L93 Difference]: Finished difference Result 2096 states and 2985 transitions. [2022-01-31 16:26:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:28,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 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 181 [2022-01-31 16:26:28,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:28,114 INFO L225 Difference]: With dead ends: 2096 [2022-01-31 16:26:28,115 INFO L226 Difference]: Without dead ends: 2096 [2022-01-31 16:26:28,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:28,115 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 36 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:28,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 576 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:26:28,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2022-01-31 16:26:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 2019. [2022-01-31 16:26:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2014 states have (on average 1.4270109235352533) internal successors, (2874), 2014 states have internal predecessors, (2874), 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) [2022-01-31 16:26:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2878 transitions. [2022-01-31 16:26:28,135 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2878 transitions. Word has length 181 [2022-01-31 16:26:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:28,136 INFO L470 AbstractCegarLoop]: Abstraction has 2019 states and 2878 transitions. [2022-01-31 16:26:28,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:28,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2878 transitions. [2022-01-31 16:26:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-01-31 16:26:28,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:28,138 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:26:28,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 16:26:28,138 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:28,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1940483440, now seen corresponding path program 1 times [2022-01-31 16:26:28,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:28,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869275002] [2022-01-31 16:26:28,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:28,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:28,278 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-31 16:26:28,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:28,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869275002] [2022-01-31 16:26:28,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869275002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:28,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:28,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:28,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166297561] [2022-01-31 16:26:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:28,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:28,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:28,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:28,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:28,279 INFO L87 Difference]: Start difference. First operand 2019 states and 2878 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) [2022-01-31 16:26:29,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:31,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:32,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:32,711 INFO L93 Difference]: Finished difference Result 2230 states and 3169 transitions. [2022-01-31 16:26:32,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:32,712 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 184 [2022-01-31 16:26:32,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:32,714 INFO L225 Difference]: With dead ends: 2230 [2022-01-31 16:26:32,714 INFO L226 Difference]: Without dead ends: 2230 [2022-01-31 16:26:32,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:32,715 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 62 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:32,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 548 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:26:32,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2022-01-31 16:26:32,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2109. [2022-01-31 16:26:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2104 states have (on average 1.4272813688212929) internal successors, (3003), 2104 states have internal predecessors, (3003), 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) [2022-01-31 16:26:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3007 transitions. [2022-01-31 16:26:32,733 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3007 transitions. Word has length 184 [2022-01-31 16:26:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:32,734 INFO L470 AbstractCegarLoop]: Abstraction has 2109 states and 3007 transitions. [2022-01-31 16:26:32,734 INFO L471 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) [2022-01-31 16:26:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3007 transitions. [2022-01-31 16:26:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-01-31 16:26:32,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:32,737 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1] [2022-01-31 16:26:32,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 16:26:32,737 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2001822662, now seen corresponding path program 1 times [2022-01-31 16:26:32,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:32,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975738588] [2022-01-31 16:26:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:32,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-01-31 16:26:32,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:32,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975738588] [2022-01-31 16:26:32,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975738588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:32,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:32,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:32,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89322791] [2022-01-31 16:26:32,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:32,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:32,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:32,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:32,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:32,860 INFO L87 Difference]: Start difference. First operand 2109 states and 3007 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) [2022-01-31 16:26:35,728 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 [] [2022-01-31 16:26:36,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:36,830 INFO L93 Difference]: Finished difference Result 2206 states and 3127 transitions. [2022-01-31 16:26:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:36,830 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 188 [2022-01-31 16:26:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:36,833 INFO L225 Difference]: With dead ends: 2206 [2022-01-31 16:26:36,833 INFO L226 Difference]: Without dead ends: 2206 [2022-01-31 16:26:36,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:36,834 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 53 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:36,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 566 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 16:26:36,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-01-31 16:26:36,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2109. [2022-01-31 16:26:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 2104 states have (on average 1.4258555133079849) internal successors, (3000), 2104 states have internal predecessors, (3000), 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) [2022-01-31 16:26:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 3004 transitions. [2022-01-31 16:26:36,850 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 3004 transitions. Word has length 188 [2022-01-31 16:26:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:36,850 INFO L470 AbstractCegarLoop]: Abstraction has 2109 states and 3004 transitions. [2022-01-31 16:26:36,850 INFO L471 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) [2022-01-31 16:26:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 3004 transitions. [2022-01-31 16:26:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-01-31 16:26:36,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:36,852 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:36,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 16:26:36,852 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:36,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:36,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1964508048, now seen corresponding path program 1 times [2022-01-31 16:26:36,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:36,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451578168] [2022-01-31 16:26:36,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:36,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:37,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-01-31 16:26:37,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:37,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451578168] [2022-01-31 16:26:37,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451578168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:37,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:37,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:37,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064735242] [2022-01-31 16:26:37,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:37,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:37,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:37,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:37,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:37,012 INFO L87 Difference]: Start difference. First operand 2109 states and 3004 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) [2022-01-31 16:26:39,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:39,477 INFO L93 Difference]: Finished difference Result 2506 states and 3538 transitions. [2022-01-31 16:26:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:39,477 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 194 [2022-01-31 16:26:39,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:39,480 INFO L225 Difference]: With dead ends: 2506 [2022-01-31 16:26:39,480 INFO L226 Difference]: Without dead ends: 2506 [2022-01-31 16:26:39,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:39,481 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 101 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:39,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 348 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:26:39,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2022-01-31 16:26:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2249. [2022-01-31 16:26:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2249 states, 2244 states have (on average 1.4206773618538324) internal successors, (3188), 2244 states have internal predecessors, (3188), 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) [2022-01-31 16:26:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 3192 transitions. [2022-01-31 16:26:39,503 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 3192 transitions. Word has length 194 [2022-01-31 16:26:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:39,504 INFO L470 AbstractCegarLoop]: Abstraction has 2249 states and 3192 transitions. [2022-01-31 16:26:39,504 INFO L471 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) [2022-01-31 16:26:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 3192 transitions. [2022-01-31 16:26:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-31 16:26:39,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:39,507 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:26:39,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-31 16:26:39,507 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1929615981, now seen corresponding path program 1 times [2022-01-31 16:26:39,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:39,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192466332] [2022-01-31 16:26:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:39,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:39,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-01-31 16:26:39,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:39,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192466332] [2022-01-31 16:26:39,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192466332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:39,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:39,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:26:39,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178045334] [2022-01-31 16:26:39,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:39,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:26:39,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:39,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:26:39,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:26:39,634 INFO L87 Difference]: Start difference. First operand 2249 states and 3192 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:42,632 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 [] [2022-01-31 16:26:43,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:43,481 INFO L93 Difference]: Finished difference Result 2340 states and 3303 transitions. [2022-01-31 16:26:43,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:26:43,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 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 195 [2022-01-31 16:26:43,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:43,485 INFO L225 Difference]: With dead ends: 2340 [2022-01-31 16:26:43,485 INFO L226 Difference]: Without dead ends: 2340 [2022-01-31 16:26:43,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:26:43,486 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 43 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:43,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 568 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:26:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2022-01-31 16:26:43,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2267. [2022-01-31 16:26:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 2262 states have (on average 1.4173297966401415) internal successors, (3206), 2262 states have internal predecessors, (3206), 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) [2022-01-31 16:26:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3210 transitions. [2022-01-31 16:26:43,506 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3210 transitions. Word has length 195 [2022-01-31 16:26:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:43,506 INFO L470 AbstractCegarLoop]: Abstraction has 2267 states and 3210 transitions. [2022-01-31 16:26:43,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:43,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3210 transitions. [2022-01-31 16:26:43,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 16:26:43,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:43,508 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:43,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-31 16:26:43,508 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:43,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:43,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2123698635, now seen corresponding path program 1 times [2022-01-31 16:26:43,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:43,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930958223] [2022-01-31 16:26:43,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:43,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-01-31 16:26:44,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:44,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930958223] [2022-01-31 16:26:44,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930958223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:26:44,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:26:44,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 16:26:44,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173280462] [2022-01-31 16:26:44,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:26:44,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:26:44,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:26:44,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:26:44,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:26:44,029 INFO L87 Difference]: Start difference. First operand 2267 states and 3210 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:46,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:48,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:26:50,385 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 [] [2022-01-31 16:26:50,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:26:50,828 INFO L93 Difference]: Finished difference Result 2275 states and 3220 transitions. [2022-01-31 16:26:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:26:50,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-01-31 16:26:50,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:26:50,832 INFO L225 Difference]: With dead ends: 2275 [2022-01-31 16:26:50,832 INFO L226 Difference]: Without dead ends: 2267 [2022-01-31 16:26:50,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:26:50,833 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 7 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:26:50,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 812 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-01-31 16:26:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2022-01-31 16:26:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 2267. [2022-01-31 16:26:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2267 states, 2262 states have (on average 1.4168877099911583) internal successors, (3205), 2262 states have internal predecessors, (3205), 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) [2022-01-31 16:26:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2267 states to 2267 states and 3209 transitions. [2022-01-31 16:26:50,879 INFO L78 Accepts]: Start accepts. Automaton has 2267 states and 3209 transitions. Word has length 196 [2022-01-31 16:26:50,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:26:50,880 INFO L470 AbstractCegarLoop]: Abstraction has 2267 states and 3209 transitions. [2022-01-31 16:26:50,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:26:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2267 states and 3209 transitions. [2022-01-31 16:26:50,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-31 16:26:50,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:26:50,882 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:26:50,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-31 16:26:50,882 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:26:50,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:26:50,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1887080810, now seen corresponding path program 1 times [2022-01-31 16:26:50,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:26:50,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515309807] [2022-01-31 16:26:50,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:50,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:26:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:26:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-01-31 16:26:52,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:26:52,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515309807] [2022-01-31 16:26:52,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515309807] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:26:52,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458565769] [2022-01-31 16:26:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:26:52,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:26:52,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:26:52,423 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) [2022-01-31 16:26:52,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:26:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:26:53,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 209 conjunts are in the unsatisfiable core [2022-01-31 16:26:53,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:26:54,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,151 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 73386 treesize of output 55138 [2022-01-31 16:26:54,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29910 treesize of output 29929 [2022-01-31 16:26:54,249 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35436 treesize of output 25628 [2022-01-31 16:26:54,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,309 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12980 treesize of output 12999 [2022-01-31 16:26:54,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:26:54,679 INFO L353 Elim1Store]: treesize reduction 184, result has 16.7 percent of original size [2022-01-31 16:26:54,680 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 15326 treesize of output 5900 [2022-01-31 16:26:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:27:03,676 INFO L244 Elim1Store]: Index analysis took 738 ms