/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-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:54:57,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:54:57,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:54:57,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:54:57,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:54:57,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:54:57,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:54:57,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:54:57,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:54:57,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:54:57,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:54:57,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:54:57,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:54:57,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:54:57,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:54:57,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:54:57,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:54:57,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:54:57,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:54:57,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:54:57,685 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:54:57,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:54:57,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:54:57,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:54:57,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:54:57,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:54:57,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:54:57,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:54:57,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:54:57,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:54:57,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:54:57,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:54:57,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:54:57,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:54:57,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:54:57,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:54:57,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:54:57,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:54:57,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:54:57,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:54:57,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:54:57,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:54:57,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:54:57,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:54:57,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:54:57,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:54:57,712 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:54:57,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:54:57,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:54:57,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:54:57,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:54:57,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:54:57,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:54:57,713 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:54:57,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:54:57,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:54:57,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:54:57,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:54:57,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:54:57,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:54:57,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:54:57,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:54:57,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:54:57,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:54:57,715 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:54:57,715 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:54:57,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:54:57,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:54:57,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:54:57,900 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:54:57,901 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:54:57,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-17 18:54:58,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6399344f3/678b53ce80c145c0a01553803d7328a6/FLAG84729f77a [2022-03-17 18:54:58,433 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:54:58,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-17 18:54:58,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6399344f3/678b53ce80c145c0a01553803d7328a6/FLAG84729f77a [2022-03-17 18:54:58,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6399344f3/678b53ce80c145c0a01553803d7328a6 [2022-03-17 18:54:58,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:54:58,466 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:54:58,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:54:58,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:54:58,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:54:58,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:58,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad9c8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58, skipping insertion in model container [2022-03-17 18:54:58,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:58,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:54:58,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:54:58,824 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-1.c[73581,73594] [2022-03-17 18:54:58,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:54:58,847 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:54:58,958 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-1.c[73581,73594] [2022-03-17 18:54:58,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:54:58,973 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:54:58,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58 WrapperNode [2022-03-17 18:54:58,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:54:58,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:54:58,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:54:58,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:54:58,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:58,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:59,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:59,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:59,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:59,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:59,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:59,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:54:59,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:54:59,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:54:59,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:54:59,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (1/1) ... [2022-03-17 18:54:59,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:54:59,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:54:59,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 18:54:59,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:54:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:54:59,128 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:54:59,128 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:54:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:54:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:54:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:54:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:54:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:54:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:54:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:54:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:54:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:54:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:54:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:54:59,302 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:54:59,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:54:59,936 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:55:00,368 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 18:55:00,369 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 18:55:00,378 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:55:00,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:55:00,386 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:55:00,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:55:00 BoogieIcfgContainer [2022-03-17 18:55:00,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:55:00,389 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:55:00,389 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:55:00,390 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:55:00,391 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:55:00" (1/1) ... [2022-03-17 18:55:00,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:55:00 BasicIcfg [2022-03-17 18:55:00,448 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:55:00,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:55:00,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:55:00,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:55:00,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:54:58" (1/4) ... [2022-03-17 18:55:00,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43639ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:55:00, skipping insertion in model container [2022-03-17 18:55:00,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:58" (2/4) ... [2022-03-17 18:55:00,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43639ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:55:00, skipping insertion in model container [2022-03-17 18:55:00,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:55:00" (3/4) ... [2022-03-17 18:55:00,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43639ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:55:00, skipping insertion in model container [2022-03-17 18:55:00,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:55:00" (4/4) ... [2022-03-17 18:55:00,456 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.cJordan [2022-03-17 18:55:00,460 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:55:00,460 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:55:00,499 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:55:00,504 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 18:55:00,504 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:55:00,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 18:55:00,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 18:55:00,532 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:00,532 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:00,532 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:00,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 645838238, now seen corresponding path program 1 times [2022-03-17 18:55:00,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:00,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342451396] [2022-03-17 18:55:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:00,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:55:00,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:00,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342451396] [2022-03-17 18:55:00,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342451396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:00,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:00,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:00,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128880376] [2022-03-17 18:55:00,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:00,915 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:00,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:00,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:00,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:00,940 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:03,457 INFO L93 Difference]: Finished difference Result 283 states and 469 transitions. [2022-03-17 18:55:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-17 18:55:03,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:03,471 INFO L225 Difference]: With dead ends: 283 [2022-03-17 18:55:03,471 INFO L226 Difference]: Without dead ends: 257 [2022-03-17 18:55:03,472 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:03,474 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 150 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:03,475 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 451 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:55:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-17 18:55:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 180. [2022-03-17 18:55:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6) internal successors, (280), 175 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 284 transitions. [2022-03-17 18:55:03,528 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 284 transitions. Word has length 49 [2022-03-17 18:55:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:03,529 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 284 transitions. [2022-03-17 18:55:03,529 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 284 transitions. [2022-03-17 18:55:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 18:55:03,535 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:03,535 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:03,535 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:55:03,535 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:03,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1424421714, now seen corresponding path program 1 times [2022-03-17 18:55:03,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:03,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182672412] [2022-03-17 18:55:03,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:03,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:55:03,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:03,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182672412] [2022-03-17 18:55:03,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182672412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:03,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:03,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:03,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183791812] [2022-03-17 18:55:03,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:03,744 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:03,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:03,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:03,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:03,749 INFO L87 Difference]: Start difference. First operand 180 states and 284 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:06,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:07,555 INFO L93 Difference]: Finished difference Result 296 states and 463 transitions. [2022-03-17 18:55:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 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 50 [2022-03-17 18:55:07,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:07,557 INFO L225 Difference]: With dead ends: 296 [2022-03-17 18:55:07,557 INFO L226 Difference]: Without dead ends: 296 [2022-03-17 18:55:07,558 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:07,558 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:07,559 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 18:55:07,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-03-17 18:55:07,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 220. [2022-03-17 18:55:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.6465116279069767) internal successors, (354), 215 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 358 transitions. [2022-03-17 18:55:07,565 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 358 transitions. Word has length 50 [2022-03-17 18:55:07,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:07,565 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 358 transitions. [2022-03-17 18:55:07,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 358 transitions. [2022-03-17 18:55:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-17 18:55:07,567 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:07,567 INFO L500 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, 1] [2022-03-17 18:55:07,567 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:55:07,567 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:07,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:07,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1123828743, now seen corresponding path program 1 times [2022-03-17 18:55:07,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:07,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592999244] [2022-03-17 18:55:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:07,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:07,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-17 18:55:07,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:07,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592999244] [2022-03-17 18:55:07,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592999244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:07,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:07,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:07,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888517976] [2022-03-17 18:55:07,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:07,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:07,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:07,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:07,686 INFO L87 Difference]: Start difference. First operand 220 states and 358 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:10,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:10,319 INFO L93 Difference]: Finished difference Result 248 states and 398 transitions. [2022-03-17 18:55:10,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:10,319 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 78 [2022-03-17 18:55:10,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:10,320 INFO L225 Difference]: With dead ends: 248 [2022-03-17 18:55:10,320 INFO L226 Difference]: Without dead ends: 248 [2022-03-17 18:55:10,321 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:10,321 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:10,322 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 469 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 18:55:10,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-17 18:55:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-03-17 18:55:10,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6504424778761062) internal successors, (373), 226 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 377 transitions. [2022-03-17 18:55:10,327 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 377 transitions. Word has length 78 [2022-03-17 18:55:10,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:10,328 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 377 transitions. [2022-03-17 18:55:10,328 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 377 transitions. [2022-03-17 18:55:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 18:55:10,329 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:10,329 INFO L500 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, 1] [2022-03-17 18:55:10,329 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:55:10,329 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 959141718, now seen corresponding path program 1 times [2022-03-17 18:55:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:10,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352052393] [2022-03-17 18:55:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:10,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:10,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352052393] [2022-03-17 18:55:10,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352052393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:10,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:10,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:10,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105070592] [2022-03-17 18:55:10,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:10,420 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:10,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:10,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:10,421 INFO L87 Difference]: Start difference. First operand 231 states and 377 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:11,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:13,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:15,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:16,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:16,022 INFO L93 Difference]: Finished difference Result 248 states and 397 transitions. [2022-03-17 18:55:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:16,022 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 [2022-03-17 18:55:16,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:16,023 INFO L225 Difference]: With dead ends: 248 [2022-03-17 18:55:16,023 INFO L226 Difference]: Without dead ends: 248 [2022-03-17 18:55:16,024 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:16,024 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 24 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:16,024 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 471 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 18:55:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-17 18:55:16,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-03-17 18:55:16,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6460176991150441) internal successors, (372), 226 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 376 transitions. [2022-03-17 18:55:16,029 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 376 transitions. Word has length 91 [2022-03-17 18:55:16,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:16,031 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 376 transitions. [2022-03-17 18:55:16,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 376 transitions. [2022-03-17 18:55:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-17 18:55:16,032 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:16,032 INFO L500 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, 1] [2022-03-17 18:55:16,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:55:16,032 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:16,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:16,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1315439647, now seen corresponding path program 1 times [2022-03-17 18:55:16,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:16,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253100841] [2022-03-17 18:55:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:16,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:16,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:16,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253100841] [2022-03-17 18:55:16,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253100841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:16,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:16,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:16,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833664609] [2022-03-17 18:55:16,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:16,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:16,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:16,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:16,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:16,148 INFO L87 Difference]: Start difference. First operand 231 states and 376 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:18,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:20,277 INFO L93 Difference]: Finished difference Result 247 states and 395 transitions. [2022-03-17 18:55:20,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:20,278 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 [2022-03-17 18:55:20,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:20,279 INFO L225 Difference]: With dead ends: 247 [2022-03-17 18:55:20,279 INFO L226 Difference]: Without dead ends: 247 [2022-03-17 18:55:20,279 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:20,280 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:20,280 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 18:55:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-17 18:55:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 231. [2022-03-17 18:55:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6415929203539823) internal successors, (371), 226 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) [2022-03-17 18:55:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 375 transitions. [2022-03-17 18:55:20,285 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 375 transitions. Word has length 92 [2022-03-17 18:55:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:20,285 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 375 transitions. [2022-03-17 18:55:20,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 375 transitions. [2022-03-17 18:55:20,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-17 18:55:20,285 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:20,286 INFO L500 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, 1] [2022-03-17 18:55:20,286 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:55:20,286 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:20,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:20,286 INFO L85 PathProgramCache]: Analyzing trace with hash 660427777, now seen corresponding path program 1 times [2022-03-17 18:55:20,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:20,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017677728] [2022-03-17 18:55:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:20,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:20,393 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:20,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:20,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017677728] [2022-03-17 18:55:20,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017677728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:20,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:20,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:20,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531348717] [2022-03-17 18:55:20,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:20,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:20,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:20,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:20,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:20,397 INFO L87 Difference]: Start difference. First operand 231 states and 375 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:22,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:24,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:25,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:25,374 INFO L93 Difference]: Finished difference Result 307 states and 477 transitions. [2022-03-17 18:55:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:25,375 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 [2022-03-17 18:55:25,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:25,376 INFO L225 Difference]: With dead ends: 307 [2022-03-17 18:55:25,376 INFO L226 Difference]: Without dead ends: 307 [2022-03-17 18:55:25,376 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:25,377 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 144 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:25,377 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:55:25,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-17 18:55:25,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-03-17 18:55:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6283185840707965) internal successors, (368), 226 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 372 transitions. [2022-03-17 18:55:25,381 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 372 transitions. Word has length 92 [2022-03-17 18:55:25,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:25,381 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 372 transitions. [2022-03-17 18:55:25,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 372 transitions. [2022-03-17 18:55:25,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-17 18:55:25,382 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:25,382 INFO L500 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, 1] [2022-03-17 18:55:25,382 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:55:25,382 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash -817795007, now seen corresponding path program 1 times [2022-03-17 18:55:25,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:25,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691187304] [2022-03-17 18:55:25,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:25,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:25,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:25,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691187304] [2022-03-17 18:55:25,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691187304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:25,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:25,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:25,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048088059] [2022-03-17 18:55:25,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:25,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:25,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:25,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:25,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:25,503 INFO L87 Difference]: Start difference. First operand 231 states and 372 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:28,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:29,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:30,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:30,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:30,877 INFO L93 Difference]: Finished difference Result 245 states and 389 transitions. [2022-03-17 18:55:30,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:30,877 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 [2022-03-17 18:55:30,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:30,878 INFO L225 Difference]: With dead ends: 245 [2022-03-17 18:55:30,878 INFO L226 Difference]: Without dead ends: 245 [2022-03-17 18:55:30,878 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:30,879 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:30,879 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 18:55:30,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-03-17 18:55:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 231. [2022-03-17 18:55:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6238938053097345) internal successors, (367), 226 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:30,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 371 transitions. [2022-03-17 18:55:30,883 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 371 transitions. Word has length 92 [2022-03-17 18:55:30,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:30,883 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 371 transitions. [2022-03-17 18:55:30,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:30,883 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 371 transitions. [2022-03-17 18:55:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-17 18:55:30,883 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:30,884 INFO L500 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, 1] [2022-03-17 18:55:30,884 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:55:30,884 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:30,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:30,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1735376737, now seen corresponding path program 1 times [2022-03-17 18:55:30,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:30,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747091717] [2022-03-17 18:55:30,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:30,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:30,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:30,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747091717] [2022-03-17 18:55:30,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747091717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:30,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:30,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:30,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103688883] [2022-03-17 18:55:30,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:30,987 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:30,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:30,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:30,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:30,988 INFO L87 Difference]: Start difference. First operand 231 states and 371 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:33,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:34,276 INFO L93 Difference]: Finished difference Result 244 states and 387 transitions. [2022-03-17 18:55:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:34,276 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 [2022-03-17 18:55:34,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:34,278 INFO L225 Difference]: With dead ends: 244 [2022-03-17 18:55:34,278 INFO L226 Difference]: Without dead ends: 244 [2022-03-17 18:55:34,278 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:34,278 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 18 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 479 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 [2022-03-17 18:55:34,278 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:55:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-03-17 18:55:34,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-03-17 18:55:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6194690265486726) internal successors, (366), 226 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 370 transitions. [2022-03-17 18:55:34,282 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 370 transitions. Word has length 92 [2022-03-17 18:55:34,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:34,282 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 370 transitions. [2022-03-17 18:55:34,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:34,283 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 370 transitions. [2022-03-17 18:55:34,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-17 18:55:34,283 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:34,283 INFO L500 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, 1] [2022-03-17 18:55:34,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:55:34,284 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash 471690038, now seen corresponding path program 1 times [2022-03-17 18:55:34,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:34,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848066372] [2022-03-17 18:55:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:34,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:34,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:34,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:34,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848066372] [2022-03-17 18:55:34,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848066372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:34,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:34,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:34,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954488537] [2022-03-17 18:55:34,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:34,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:34,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:34,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:34,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:34,388 INFO L87 Difference]: Start difference. First operand 231 states and 370 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) [2022-03-17 18:55:35,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:38,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:39,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:39,102 INFO L93 Difference]: Finished difference Result 244 states and 386 transitions. [2022-03-17 18:55:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:39,103 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 [2022-03-17 18:55:39,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:39,104 INFO L225 Difference]: With dead ends: 244 [2022-03-17 18:55:39,104 INFO L226 Difference]: Without dead ends: 244 [2022-03-17 18:55:39,104 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:39,104 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:39,105 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:55:39,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-03-17 18:55:39,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-03-17 18:55:39,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6150442477876106) internal successors, (365), 226 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:39,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 369 transitions. [2022-03-17 18:55:39,108 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 369 transitions. Word has length 93 [2022-03-17 18:55:39,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:39,108 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 369 transitions. [2022-03-17 18:55:39,109 INFO L479 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) [2022-03-17 18:55:39,109 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 369 transitions. [2022-03-17 18:55:39,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-17 18:55:39,109 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:39,109 INFO L500 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, 1] [2022-03-17 18:55:39,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:55:39,110 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:39,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:39,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1910970971, now seen corresponding path program 1 times [2022-03-17 18:55:39,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:39,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947429750] [2022-03-17 18:55:39,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:39,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:39,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:39,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947429750] [2022-03-17 18:55:39,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947429750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:39,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:39,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:39,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147507728] [2022-03-17 18:55:39,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:39,196 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:39,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:39,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:39,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:39,196 INFO L87 Difference]: Start difference. First operand 231 states and 369 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) [2022-03-17 18:55:41,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:41,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:41,671 INFO L93 Difference]: Finished difference Result 307 states and 471 transitions. [2022-03-17 18:55:41,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:41,671 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 [2022-03-17 18:55:41,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:41,672 INFO L225 Difference]: With dead ends: 307 [2022-03-17 18:55:41,673 INFO L226 Difference]: Without dead ends: 307 [2022-03-17 18:55:41,673 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:41,673 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:41,673 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 350 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:55:41,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-17 18:55:41,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-03-17 18:55:41,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6017699115044248) internal successors, (362), 226 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 366 transitions. [2022-03-17 18:55:41,678 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 366 transitions. Word has length 94 [2022-03-17 18:55:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:41,678 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 366 transitions. [2022-03-17 18:55:41,678 INFO L479 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) [2022-03-17 18:55:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 366 transitions. [2022-03-17 18:55:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-17 18:55:41,679 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:41,679 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:41,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:55:41,679 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:41,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:41,680 INFO L85 PathProgramCache]: Analyzing trace with hash -157861543, now seen corresponding path program 1 times [2022-03-17 18:55:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:41,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708360678] [2022-03-17 18:55:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:41,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:55:41,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:41,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708360678] [2022-03-17 18:55:41,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708360678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:41,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:41,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:41,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639775622] [2022-03-17 18:55:41,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:41,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:41,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:41,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:41,762 INFO L87 Difference]: Start difference. First operand 231 states and 366 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:42,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:44,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:46,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:47,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:47,794 INFO L93 Difference]: Finished difference Result 307 states and 468 transitions. [2022-03-17 18:55:47,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:47,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-03-17 18:55:47,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:47,795 INFO L225 Difference]: With dead ends: 307 [2022-03-17 18:55:47,795 INFO L226 Difference]: Without dead ends: 307 [2022-03-17 18:55:47,795 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:47,796 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:47,796 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 18:55:47,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-17 18:55:47,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-03-17 18:55:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5884955752212389) internal successors, (359), 226 states have internal predecessors, (359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 363 transitions. [2022-03-17 18:55:47,800 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 363 transitions. Word has length 95 [2022-03-17 18:55:47,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:47,801 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 363 transitions. [2022-03-17 18:55:47,801 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 363 transitions. [2022-03-17 18:55:47,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-17 18:55:47,802 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:47,802 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:47,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:55:47,802 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:47,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash -774763640, now seen corresponding path program 1 times [2022-03-17 18:55:47,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:47,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631063128] [2022-03-17 18:55:47,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:47,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:55:47,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:47,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631063128] [2022-03-17 18:55:47,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631063128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:47,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:47,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014362168] [2022-03-17 18:55:47,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:47,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:47,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:47,895 INFO L87 Difference]: Start difference. First operand 231 states and 363 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:49,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:51,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:53,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:53,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:53,655 INFO L93 Difference]: Finished difference Result 383 states and 602 transitions. [2022-03-17 18:55:53,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:53,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 95 [2022-03-17 18:55:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:53,656 INFO L225 Difference]: With dead ends: 383 [2022-03-17 18:55:53,656 INFO L226 Difference]: Without dead ends: 383 [2022-03-17 18:55:53,657 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:53,657 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 121 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:53,657 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 342 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 18:55:53,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-17 18:55:53,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 295. [2022-03-17 18:55:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.6172413793103448) internal successors, (469), 290 states have internal predecessors, (469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:53,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 473 transitions. [2022-03-17 18:55:53,661 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 473 transitions. Word has length 95 [2022-03-17 18:55:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:53,662 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 473 transitions. [2022-03-17 18:55:53,662 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:53,662 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 473 transitions. [2022-03-17 18:55:53,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-17 18:55:53,662 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:53,663 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 18:55:53,663 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:55:53,663 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash -390530396, now seen corresponding path program 1 times [2022-03-17 18:55:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:53,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835083053] [2022-03-17 18:55:53,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-17 18:55:53,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:53,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835083053] [2022-03-17 18:55:53,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835083053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:53,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:53,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080437423] [2022-03-17 18:55:53,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:53,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:53,823 INFO L87 Difference]: Start difference. First operand 295 states and 473 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:55,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:56,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:58,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:59,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:59,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:59,918 INFO L93 Difference]: Finished difference Result 338 states and 535 transitions. [2022-03-17 18:55:59,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:59,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-17 18:55:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:59,919 INFO L225 Difference]: With dead ends: 338 [2022-03-17 18:55:59,919 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 18:55:59,920 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:55:59,920 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 31 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:59,920 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 491 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:55:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 18:55:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-03-17 18:55:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6153846153846154) internal successors, (504), 312 states have internal predecessors, (504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 508 transitions. [2022-03-17 18:55:59,924 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 508 transitions. Word has length 100 [2022-03-17 18:55:59,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:59,925 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 508 transitions. [2022-03-17 18:55:59,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:59,925 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 508 transitions. [2022-03-17 18:55:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-17 18:55:59,926 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:59,926 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:59,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:55:59,926 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:59,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1693682037, now seen corresponding path program 1 times [2022-03-17 18:55:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214131398] [2022-03-17 18:55:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:59,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:00,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:00,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214131398] [2022-03-17 18:56:00,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214131398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:00,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:00,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:00,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983852171] [2022-03-17 18:56:00,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:00,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:00,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:00,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:00,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:00,014 INFO L87 Difference]: Start difference. First operand 317 states and 508 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) [2022-03-17 18:56:02,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:03,584 INFO L93 Difference]: Finished difference Result 338 states and 534 transitions. [2022-03-17 18:56:03,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:03,585 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 [2022-03-17 18:56:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:03,586 INFO L225 Difference]: With dead ends: 338 [2022-03-17 18:56:03,586 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 18:56:03,586 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:03,587 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 36 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:03,587 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 491 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 18:56:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 18:56:03,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-03-17 18:56:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6121794871794872) internal successors, (503), 312 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:03,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 507 transitions. [2022-03-17 18:56:03,591 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 507 transitions. Word has length 108 [2022-03-17 18:56:03,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:03,591 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 507 transitions. [2022-03-17 18:56:03,591 INFO L479 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) [2022-03-17 18:56:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 507 transitions. [2022-03-17 18:56:03,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 18:56:03,592 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:03,592 INFO L500 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, 1] [2022-03-17 18:56:03,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:56:03,592 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:03,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash 478118402, now seen corresponding path program 1 times [2022-03-17 18:56:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:03,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363939387] [2022-03-17 18:56:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:56:03,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:03,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363939387] [2022-03-17 18:56:03,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363939387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:03,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:03,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:03,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073118794] [2022-03-17 18:56:03,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:03,679 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:03,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:03,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:03,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:03,680 INFO L87 Difference]: Start difference. First operand 317 states and 507 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:06,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:07,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:08,651 INFO L93 Difference]: Finished difference Result 336 states and 531 transitions. [2022-03-17 18:56:08,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:08,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 18:56:08,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:08,653 INFO L225 Difference]: With dead ends: 336 [2022-03-17 18:56:08,653 INFO L226 Difference]: Without dead ends: 336 [2022-03-17 18:56:08,653 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:08,653 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 34 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:08,654 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 495 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:56:08,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-17 18:56:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 317. [2022-03-17 18:56:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.608974358974359) internal successors, (502), 312 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) [2022-03-17 18:56:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 506 transitions. [2022-03-17 18:56:08,694 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 506 transitions. Word has length 109 [2022-03-17 18:56:08,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:08,694 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 506 transitions. [2022-03-17 18:56:08,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:08,694 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 506 transitions. [2022-03-17 18:56:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-17 18:56:08,695 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:08,695 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-17 18:56:08,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:56:08,695 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:08,696 INFO L85 PathProgramCache]: Analyzing trace with hash -733726518, now seen corresponding path program 1 times [2022-03-17 18:56:08,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:08,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864954010] [2022-03-17 18:56:08,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:08,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:08,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-17 18:56:08,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:08,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864954010] [2022-03-17 18:56:08,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864954010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:08,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:08,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:08,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189521989] [2022-03-17 18:56:08,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:08,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:08,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:08,781 INFO L87 Difference]: Start difference. First operand 317 states and 506 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:13,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:13,387 INFO L93 Difference]: Finished difference Result 346 states and 545 transitions. [2022-03-17 18:56:13,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:13,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 [2022-03-17 18:56:13,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:13,391 INFO L225 Difference]: With dead ends: 346 [2022-03-17 18:56:13,391 INFO L226 Difference]: Without dead ends: 346 [2022-03-17 18:56:13,391 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:13,392 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 19 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:13,392 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 556 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 18:56:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-03-17 18:56:13,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 333. [2022-03-17 18:56:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.600609756097561) internal successors, (525), 328 states have internal predecessors, (525), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:13,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 529 transitions. [2022-03-17 18:56:13,396 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 529 transitions. Word has length 114 [2022-03-17 18:56:13,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:13,396 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 529 transitions. [2022-03-17 18:56:13,397 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:13,397 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 529 transitions. [2022-03-17 18:56:13,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-17 18:56:13,397 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:13,397 INFO L500 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, 1] [2022-03-17 18:56:13,398 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:56:13,398 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:13,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:13,398 INFO L85 PathProgramCache]: Analyzing trace with hash -935680694, now seen corresponding path program 1 times [2022-03-17 18:56:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:13,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584498650] [2022-03-17 18:56:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-17 18:56:13,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:13,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584498650] [2022-03-17 18:56:13,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584498650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:13,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:13,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:13,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341996898] [2022-03-17 18:56:13,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:13,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:13,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:13,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:13,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:13,485 INFO L87 Difference]: Start difference. First operand 333 states and 529 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:16,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:19,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:19,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:19,749 INFO L93 Difference]: Finished difference Result 408 states and 628 transitions. [2022-03-17 18:56:19,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:19,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 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 [2022-03-17 18:56:19,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:19,751 INFO L225 Difference]: With dead ends: 408 [2022-03-17 18:56:19,751 INFO L226 Difference]: Without dead ends: 408 [2022-03-17 18:56:19,751 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:19,751 INFO L912 BasicCegarLoop]: 114 mSDtfsCounter, 136 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:19,752 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 332 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:56:19,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-03-17 18:56:19,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 333. [2022-03-17 18:56:19,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5853658536585367) internal successors, (520), 328 states have internal predecessors, (520), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:19,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 524 transitions. [2022-03-17 18:56:19,756 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 524 transitions. Word has length 114 [2022-03-17 18:56:19,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:19,756 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 524 transitions. [2022-03-17 18:56:19,756 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:19,756 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 524 transitions. [2022-03-17 18:56:19,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-17 18:56:19,757 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:19,757 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:19,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:56:19,757 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:19,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:19,758 INFO L85 PathProgramCache]: Analyzing trace with hash 830257820, now seen corresponding path program 1 times [2022-03-17 18:56:19,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:19,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636248052] [2022-03-17 18:56:19,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:19,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-17 18:56:19,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:19,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636248052] [2022-03-17 18:56:19,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636248052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:19,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:19,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:56:19,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37756039] [2022-03-17 18:56:19,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:19,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:56:19,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:19,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:56:19,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:19,856 INFO L87 Difference]: Start difference. First operand 333 states and 524 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:22,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:24,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:26,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:26,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:26,491 INFO L93 Difference]: Finished difference Result 342 states and 535 transitions. [2022-03-17 18:56:26,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:56:26,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 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 [2022-03-17 18:56:26,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:26,493 INFO L225 Difference]: With dead ends: 342 [2022-03-17 18:56:26,493 INFO L226 Difference]: Without dead ends: 342 [2022-03-17 18:56:26,493 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 18:56:26,494 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:26,494 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 617 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 18:56:26,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-03-17 18:56:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-03-17 18:56:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.57566765578635) internal successors, (531), 337 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:26,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 535 transitions. [2022-03-17 18:56:26,498 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 535 transitions. Word has length 115 [2022-03-17 18:56:26,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:26,498 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 535 transitions. [2022-03-17 18:56:26,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:26,499 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 535 transitions. [2022-03-17 18:56:26,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-17 18:56:26,499 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:26,499 INFO L500 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, 1] [2022-03-17 18:56:26,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:56:26,500 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:26,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:26,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1810119759, now seen corresponding path program 1 times [2022-03-17 18:56:26,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:26,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256193784] [2022-03-17 18:56:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:26,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:26,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-17 18:56:26,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:26,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256193784] [2022-03-17 18:56:26,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256193784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:26,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:26,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:26,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829175264] [2022-03-17 18:56:26,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:26,583 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:26,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:26,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:26,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:26,583 INFO L87 Difference]: Start difference. First operand 342 states and 535 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:28,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:30,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:31,569 INFO L93 Difference]: Finished difference Result 359 states and 556 transitions. [2022-03-17 18:56:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:31,569 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 116 [2022-03-17 18:56:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:31,570 INFO L225 Difference]: With dead ends: 359 [2022-03-17 18:56:31,570 INFO L226 Difference]: Without dead ends: 359 [2022-03-17 18:56:31,570 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:31,571 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 35 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:31,571 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 499 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:56:31,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-03-17 18:56:31,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 342. [2022-03-17 18:56:31,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.572700296735905) internal successors, (530), 337 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:31,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 534 transitions. [2022-03-17 18:56:31,575 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 534 transitions. Word has length 116 [2022-03-17 18:56:31,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:31,575 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 534 transitions. [2022-03-17 18:56:31,575 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 534 transitions. [2022-03-17 18:56:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 18:56:31,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:31,576 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:31,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:56:31,577 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:31,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:31,577 INFO L85 PathProgramCache]: Analyzing trace with hash 713638299, now seen corresponding path program 1 times [2022-03-17 18:56:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:31,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569996886] [2022-03-17 18:56:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:31,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 18:56:31,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:31,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569996886] [2022-03-17 18:56:31,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569996886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:31,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:31,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:31,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704663247] [2022-03-17 18:56:31,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:31,704 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:31,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:31,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:31,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:31,704 INFO L87 Difference]: Start difference. First operand 342 states and 534 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:33,864 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 [] [2022-03-17 18:56:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:35,163 INFO L93 Difference]: Finished difference Result 349 states and 543 transitions. [2022-03-17 18:56:35,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:35,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 18:56:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:35,165 INFO L225 Difference]: With dead ends: 349 [2022-03-17 18:56:35,165 INFO L226 Difference]: Without dead ends: 349 [2022-03-17 18:56:35,165 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:35,165 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:35,165 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 513 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:56:35,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-17 18:56:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 342. [2022-03-17 18:56:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.5697329376854599) internal successors, (529), 337 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) [2022-03-17 18:56:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 533 transitions. [2022-03-17 18:56:35,170 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 533 transitions. Word has length 122 [2022-03-17 18:56:35,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:35,170 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 533 transitions. [2022-03-17 18:56:35,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 533 transitions. [2022-03-17 18:56:35,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 18:56:35,171 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:35,171 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:35,171 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:56:35,171 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:35,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1104389438, now seen corresponding path program 1 times [2022-03-17 18:56:35,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:35,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477000486] [2022-03-17 18:56:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:35,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-17 18:56:35,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:35,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477000486] [2022-03-17 18:56:35,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477000486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:35,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:35,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:56:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935402219] [2022-03-17 18:56:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:35,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:56:35,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:56:35,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:56:35,263 INFO L87 Difference]: Start difference. First operand 342 states and 533 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:37,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:38,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:38,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:38,942 INFO L93 Difference]: Finished difference Result 369 states and 568 transitions. [2022-03-17 18:56:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:56:38,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 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 122 [2022-03-17 18:56:38,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:38,943 INFO L225 Difference]: With dead ends: 369 [2022-03-17 18:56:38,943 INFO L226 Difference]: Without dead ends: 369 [2022-03-17 18:56:38,943 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:56:38,944 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:38,944 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 413 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 18:56:38,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-03-17 18:56:38,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-03-17 18:56:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5494505494505495) internal successors, (564), 364 states have internal predecessors, (564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:38,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 568 transitions. [2022-03-17 18:56:38,948 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 568 transitions. Word has length 122 [2022-03-17 18:56:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:38,949 INFO L478 AbstractCegarLoop]: Abstraction has 369 states and 568 transitions. [2022-03-17 18:56:38,949 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:38,949 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 568 transitions. [2022-03-17 18:56:38,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 18:56:38,949 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:38,950 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:38,950 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:56:38,950 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:38,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:38,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2081762659, now seen corresponding path program 1 times [2022-03-17 18:56:38,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:38,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107691580] [2022-03-17 18:56:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:38,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:56:39,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:39,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107691580] [2022-03-17 18:56:39,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107691580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:39,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:39,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412879256] [2022-03-17 18:56:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:39,046 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:39,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:39,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:39,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:39,047 INFO L87 Difference]: Start difference. First operand 369 states and 568 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:41,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:42,040 INFO L93 Difference]: Finished difference Result 494 states and 750 transitions. [2022-03-17 18:56:42,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:42,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 18:56:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:42,042 INFO L225 Difference]: With dead ends: 494 [2022-03-17 18:56:42,042 INFO L226 Difference]: Without dead ends: 494 [2022-03-17 18:56:42,042 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:42,043 INFO L912 BasicCegarLoop]: 114 mSDtfsCounter, 116 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:42,043 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 332 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 18:56:42,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-03-17 18:56:42,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 406. [2022-03-17 18:56:42,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5610972568578554) internal successors, (626), 401 states have internal predecessors, (626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 630 transitions. [2022-03-17 18:56:42,048 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 630 transitions. Word has length 122 [2022-03-17 18:56:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:42,049 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 630 transitions. [2022-03-17 18:56:42,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:42,049 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 630 transitions. [2022-03-17 18:56:42,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 18:56:42,049 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:42,049 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:42,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:56:42,050 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:42,050 INFO L85 PathProgramCache]: Analyzing trace with hash 445754168, now seen corresponding path program 1 times [2022-03-17 18:56:42,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:42,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446199888] [2022-03-17 18:56:42,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:42,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:42,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:42,144 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:56:42,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:42,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446199888] [2022-03-17 18:56:42,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446199888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:42,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:42,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:42,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102102702] [2022-03-17 18:56:42,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:42,145 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:42,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:42,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:42,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:42,145 INFO L87 Difference]: Start difference. First operand 406 states and 630 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:43,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:45,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:47,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:49,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:50,334 INFO L93 Difference]: Finished difference Result 491 states and 744 transitions. [2022-03-17 18:56:50,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:50,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 18:56:50,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:50,336 INFO L225 Difference]: With dead ends: 491 [2022-03-17 18:56:50,336 INFO L226 Difference]: Without dead ends: 491 [2022-03-17 18:56:50,336 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:50,336 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:50,337 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 352 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-17 18:56:50,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-03-17 18:56:50,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-03-17 18:56:50,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5561097256857854) internal successors, (624), 401 states have internal predecessors, (624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:50,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 628 transitions. [2022-03-17 18:56:50,342 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 628 transitions. Word has length 123 [2022-03-17 18:56:50,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:50,342 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 628 transitions. [2022-03-17 18:56:50,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 628 transitions. [2022-03-17 18:56:50,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 18:56:50,343 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:50,343 INFO L500 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, 1] [2022-03-17 18:56:50,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:56:50,343 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:50,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:50,343 INFO L85 PathProgramCache]: Analyzing trace with hash -653488844, now seen corresponding path program 1 times [2022-03-17 18:56:50,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:50,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480826799] [2022-03-17 18:56:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:50,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:56:50,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:50,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480826799] [2022-03-17 18:56:50,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480826799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:50,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:50,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:50,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348895590] [2022-03-17 18:56:50,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:50,432 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:50,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:50,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:50,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:50,432 INFO L87 Difference]: Start difference. First operand 406 states and 628 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:53,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:53,450 INFO L93 Difference]: Finished difference Result 491 states and 739 transitions. [2022-03-17 18:56:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:53,450 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 [2022-03-17 18:56:53,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:53,452 INFO L225 Difference]: With dead ends: 491 [2022-03-17 18:56:53,452 INFO L226 Difference]: Without dead ends: 491 [2022-03-17 18:56:53,452 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:53,452 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 136 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:53,453 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 18:56:53,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-03-17 18:56:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-03-17 18:56:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5436408977556109) internal successors, (619), 401 states have internal predecessors, (619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 623 transitions. [2022-03-17 18:56:53,458 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 623 transitions. Word has length 130 [2022-03-17 18:56:53,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:53,458 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 623 transitions. [2022-03-17 18:56:53,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:53,459 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 623 transitions. [2022-03-17 18:56:53,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 18:56:53,462 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:53,462 INFO L500 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, 1] [2022-03-17 18:56:53,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:56:53,462 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:53,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:53,463 INFO L85 PathProgramCache]: Analyzing trace with hash 730265123, now seen corresponding path program 1 times [2022-03-17 18:56:53,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:53,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10549263] [2022-03-17 18:56:53,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:53,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:53,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:56:53,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:53,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10549263] [2022-03-17 18:56:53,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10549263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:53,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:53,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:53,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162580767] [2022-03-17 18:56:53,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:53,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:53,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:53,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:53,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:53,565 INFO L87 Difference]: Start difference. First operand 406 states and 623 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:55,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:57,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:57,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:56:57,902 INFO L93 Difference]: Finished difference Result 507 states and 769 transitions. [2022-03-17 18:56:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:56:57,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 131 [2022-03-17 18:56:57,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:56:57,904 INFO L225 Difference]: With dead ends: 507 [2022-03-17 18:56:57,904 INFO L226 Difference]: Without dead ends: 507 [2022-03-17 18:56:57,904 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:56:57,904 INFO L912 BasicCegarLoop]: 176 mSDtfsCounter, 96 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:56:57,905 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 461 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 18:56:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-03-17 18:56:57,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 425. [2022-03-17 18:56:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 420 states have (on average 1.5357142857142858) internal successors, (645), 420 states have internal predecessors, (645), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 649 transitions. [2022-03-17 18:56:57,910 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 649 transitions. Word has length 131 [2022-03-17 18:56:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:56:57,910 INFO L478 AbstractCegarLoop]: Abstraction has 425 states and 649 transitions. [2022-03-17 18:56:57,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:57,910 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 649 transitions. [2022-03-17 18:56:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 18:56:57,911 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:56:57,911 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:56:57,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:56:57,911 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:56:57,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:56:57,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1621563087, now seen corresponding path program 1 times [2022-03-17 18:56:57,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:56:57,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474439099] [2022-03-17 18:56:57,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:56:57,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:56:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:56:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:56:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:56:58,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:56:58,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474439099] [2022-03-17 18:56:58,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474439099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:56:58,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:56:58,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:56:58,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931066916] [2022-03-17 18:56:58,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:56:58,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:56:58,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:56:58,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:56:58,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:56:58,008 INFO L87 Difference]: Start difference. First operand 425 states and 649 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:56:59,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:01,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:03,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:03,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:03,995 INFO L93 Difference]: Finished difference Result 550 states and 829 transitions. [2022-03-17 18:57:03,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:03,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 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 131 [2022-03-17 18:57:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:03,997 INFO L225 Difference]: With dead ends: 550 [2022-03-17 18:57:03,997 INFO L226 Difference]: Without dead ends: 550 [2022-03-17 18:57:03,998 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:03,998 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:03,998 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 353 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 18:57:03,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-17 18:57:04,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 468. [2022-03-17 18:57:04,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 463 states have (on average 1.5442764578833694) internal successors, (715), 463 states have internal predecessors, (715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:04,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 719 transitions. [2022-03-17 18:57:04,004 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 719 transitions. Word has length 131 [2022-03-17 18:57:04,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:04,004 INFO L478 AbstractCegarLoop]: Abstraction has 468 states and 719 transitions. [2022-03-17 18:57:04,004 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 719 transitions. [2022-03-17 18:57:04,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 18:57:04,005 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:04,005 INFO L500 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, 1] [2022-03-17 18:57:04,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 18:57:04,005 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:04,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:04,006 INFO L85 PathProgramCache]: Analyzing trace with hash -754790428, now seen corresponding path program 1 times [2022-03-17 18:57:04,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:04,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488764006] [2022-03-17 18:57:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:04,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:04,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:04,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:04,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488764006] [2022-03-17 18:57:04,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488764006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:04,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:04,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:04,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494711014] [2022-03-17 18:57:04,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:04,113 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:04,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:04,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:04,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:04,113 INFO L87 Difference]: Start difference. First operand 468 states and 719 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:05,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:07,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:08,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:10,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:11,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:11,163 INFO L93 Difference]: Finished difference Result 553 states and 829 transitions. [2022-03-17 18:57:11,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:11,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 131 [2022-03-17 18:57:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:11,165 INFO L225 Difference]: With dead ends: 553 [2022-03-17 18:57:11,165 INFO L226 Difference]: Without dead ends: 553 [2022-03-17 18:57:11,165 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:11,165 INFO L912 BasicCegarLoop]: 114 mSDtfsCounter, 135 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:11,166 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 332 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 18:57:11,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-17 18:57:11,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 449. [2022-03-17 18:57:11,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 444 states have (on average 1.5382882882882882) internal successors, (683), 444 states have internal predecessors, (683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 687 transitions. [2022-03-17 18:57:11,173 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 687 transitions. Word has length 131 [2022-03-17 18:57:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:11,173 INFO L478 AbstractCegarLoop]: Abstraction has 449 states and 687 transitions. [2022-03-17 18:57:11,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 687 transitions. [2022-03-17 18:57:11,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 18:57:11,174 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:11,174 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:11,174 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:57:11,174 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:11,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1699130074, now seen corresponding path program 1 times [2022-03-17 18:57:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:11,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815556255] [2022-03-17 18:57:11,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:11,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:57:11,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:11,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815556255] [2022-03-17 18:57:11,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815556255] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:11,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:11,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:11,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180815273] [2022-03-17 18:57:11,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:11,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:11,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:11,282 INFO L87 Difference]: Start difference. First operand 449 states and 687 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:12,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:13,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:15,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:16,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:17,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:17,319 INFO L93 Difference]: Finished difference Result 543 states and 821 transitions. [2022-03-17 18:57:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:17,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 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 132 [2022-03-17 18:57:17,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:17,321 INFO L225 Difference]: With dead ends: 543 [2022-03-17 18:57:17,321 INFO L226 Difference]: Without dead ends: 543 [2022-03-17 18:57:17,321 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:17,322 INFO L912 BasicCegarLoop]: 179 mSDtfsCounter, 61 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:17,322 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 469 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 18:57:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-03-17 18:57:17,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 492. [2022-03-17 18:57:17,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.540041067761807) internal successors, (750), 487 states have internal predecessors, (750), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 754 transitions. [2022-03-17 18:57:17,327 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 754 transitions. Word has length 132 [2022-03-17 18:57:17,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:17,327 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 754 transitions. [2022-03-17 18:57:17,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:17,327 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 754 transitions. [2022-03-17 18:57:17,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 18:57:17,328 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:17,328 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:17,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 18:57:17,328 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:17,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:17,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1387919047, now seen corresponding path program 1 times [2022-03-17 18:57:17,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:17,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460104061] [2022-03-17 18:57:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:17,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:57:17,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:17,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460104061] [2022-03-17 18:57:17,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460104061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:17,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:17,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794156159] [2022-03-17 18:57:17,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:17,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:17,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:17,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:17,410 INFO L87 Difference]: Start difference. First operand 492 states and 754 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:20,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:22,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:23,109 INFO L93 Difference]: Finished difference Result 577 states and 869 transitions. [2022-03-17 18:57:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 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 132 [2022-03-17 18:57:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:23,111 INFO L225 Difference]: With dead ends: 577 [2022-03-17 18:57:23,111 INFO L226 Difference]: Without dead ends: 575 [2022-03-17 18:57:23,111 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:23,111 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:23,111 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 18:57:23,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-03-17 18:57:23,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 494. [2022-03-17 18:57:23,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.539877300613497) internal successors, (753), 489 states have internal predecessors, (753), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:23,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 757 transitions. [2022-03-17 18:57:23,118 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 757 transitions. Word has length 132 [2022-03-17 18:57:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:23,118 INFO L478 AbstractCegarLoop]: Abstraction has 494 states and 757 transitions. [2022-03-17 18:57:23,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 757 transitions. [2022-03-17 18:57:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 18:57:23,119 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:23,119 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:23,119 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 18:57:23,119 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:23,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:23,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1680520422, now seen corresponding path program 1 times [2022-03-17 18:57:23,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:23,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107889394] [2022-03-17 18:57:23,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:23,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:23,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:57:23,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:23,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107889394] [2022-03-17 18:57:23,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107889394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:23,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:23,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:23,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116122475] [2022-03-17 18:57:23,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:23,207 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:23,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:23,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:23,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:23,207 INFO L87 Difference]: Start difference. First operand 494 states and 757 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) [2022-03-17 18:57:24,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:25,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:27,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:28,506 INFO L93 Difference]: Finished difference Result 535 states and 811 transitions. [2022-03-17 18:57:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:28,506 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 [2022-03-17 18:57:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:28,507 INFO L225 Difference]: With dead ends: 535 [2022-03-17 18:57:28,507 INFO L226 Difference]: Without dead ends: 535 [2022-03-17 18:57:28,508 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:28,508 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 90 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:28,508 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 493 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 18:57:28,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-17 18:57:28,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 494. [2022-03-17 18:57:28,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.5378323108384457) internal successors, (752), 489 states have internal predecessors, (752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:28,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 756 transitions. [2022-03-17 18:57:28,514 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 756 transitions. Word has length 144 [2022-03-17 18:57:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:28,514 INFO L478 AbstractCegarLoop]: Abstraction has 494 states and 756 transitions. [2022-03-17 18:57:28,514 INFO L479 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) [2022-03-17 18:57:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 756 transitions. [2022-03-17 18:57:28,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 18:57:28,515 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:28,515 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:28,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 18:57:28,515 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:28,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:28,516 INFO L85 PathProgramCache]: Analyzing trace with hash 780500646, now seen corresponding path program 1 times [2022-03-17 18:57:28,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:28,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264063136] [2022-03-17 18:57:28,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:28,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:28,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:28,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:28,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264063136] [2022-03-17 18:57:28,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264063136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:28,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:28,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:28,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666479819] [2022-03-17 18:57:28,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:28,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:28,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:28,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:28,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:28,602 INFO L87 Difference]: Start difference. First operand 494 states and 756 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:30,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:32,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:33,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:33,279 INFO L93 Difference]: Finished difference Result 617 states and 925 transitions. [2022-03-17 18:57:33,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:33,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 18:57:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:33,281 INFO L225 Difference]: With dead ends: 617 [2022-03-17 18:57:33,283 INFO L226 Difference]: Without dead ends: 617 [2022-03-17 18:57:33,283 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:33,284 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:33,284 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 354 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:57:33,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-03-17 18:57:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 524. [2022-03-17 18:57:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 519 states have (on average 1.5298651252408477) internal successors, (794), 519 states have internal predecessors, (794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:33,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 798 transitions. [2022-03-17 18:57:33,295 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 798 transitions. Word has length 144 [2022-03-17 18:57:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:33,295 INFO L478 AbstractCegarLoop]: Abstraction has 524 states and 798 transitions. [2022-03-17 18:57:33,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 798 transitions. [2022-03-17 18:57:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 18:57:33,297 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:33,297 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:33,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:57:33,297 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:33,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:33,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2086081273, now seen corresponding path program 1 times [2022-03-17 18:57:33,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:33,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392284801] [2022-03-17 18:57:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:33,387 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:57:33,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:33,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392284801] [2022-03-17 18:57:33,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392284801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:33,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:33,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:33,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520549578] [2022-03-17 18:57:33,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:33,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:33,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:33,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:33,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:33,388 INFO L87 Difference]: Start difference. First operand 524 states and 798 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) [2022-03-17 18:57:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:36,309 INFO L93 Difference]: Finished difference Result 607 states and 918 transitions. [2022-03-17 18:57:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:36,310 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 [2022-03-17 18:57:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:36,311 INFO L225 Difference]: With dead ends: 607 [2022-03-17 18:57:36,311 INFO L226 Difference]: Without dead ends: 607 [2022-03-17 18:57:36,311 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:36,311 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 91 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:36,312 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 625 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 18:57:36,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-03-17 18:57:36,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 535. [2022-03-17 18:57:36,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.528301886792453) internal successors, (810), 530 states have internal predecessors, (810), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:36,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 814 transitions. [2022-03-17 18:57:36,317 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 814 transitions. Word has length 144 [2022-03-17 18:57:36,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:36,317 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 814 transitions. [2022-03-17 18:57:36,317 INFO L479 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) [2022-03-17 18:57:36,317 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 814 transitions. [2022-03-17 18:57:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 18:57:36,318 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:36,318 INFO L500 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, 1] [2022-03-17 18:57:36,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 18:57:36,319 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:36,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1870256407, now seen corresponding path program 1 times [2022-03-17 18:57:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:36,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833294335] [2022-03-17 18:57:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:36,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:57:36,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:36,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833294335] [2022-03-17 18:57:36,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833294335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:36,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:36,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:36,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898049799] [2022-03-17 18:57:36,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:36,418 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:36,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:36,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:36,419 INFO L87 Difference]: Start difference. First operand 535 states and 814 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:37,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:39,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:41,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:41,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:41,437 INFO L93 Difference]: Finished difference Result 606 states and 901 transitions. [2022-03-17 18:57:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 145 [2022-03-17 18:57:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:41,439 INFO L225 Difference]: With dead ends: 606 [2022-03-17 18:57:41,439 INFO L226 Difference]: Without dead ends: 606 [2022-03-17 18:57:41,439 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:41,439 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 135 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:41,440 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 356 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:57:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-03-17 18:57:41,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2022-03-17 18:57:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5113207547169811) internal successors, (801), 530 states have internal predecessors, (801), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 805 transitions. [2022-03-17 18:57:41,446 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 805 transitions. Word has length 145 [2022-03-17 18:57:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:41,446 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 805 transitions. [2022-03-17 18:57:41,446 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 805 transitions. [2022-03-17 18:57:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 18:57:41,447 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:41,447 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:41,447 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:57:41,448 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash -390187374, now seen corresponding path program 1 times [2022-03-17 18:57:41,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:41,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281975809] [2022-03-17 18:57:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:41,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:41,534 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:41,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:41,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281975809] [2022-03-17 18:57:41,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281975809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:41,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:41,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:41,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233613169] [2022-03-17 18:57:41,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:41,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:41,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:41,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:41,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:41,535 INFO L87 Difference]: Start difference. First operand 535 states and 805 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:42,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:43,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:44,845 INFO L93 Difference]: Finished difference Result 564 states and 844 transitions. [2022-03-17 18:57:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:44,846 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 145 [2022-03-17 18:57:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:44,847 INFO L225 Difference]: With dead ends: 564 [2022-03-17 18:57:44,847 INFO L226 Difference]: Without dead ends: 564 [2022-03-17 18:57:44,847 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:44,848 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 59 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:44,848 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 489 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:57:44,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-03-17 18:57:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 535. [2022-03-17 18:57:44,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.509433962264151) internal successors, (800), 530 states have internal predecessors, (800), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 804 transitions. [2022-03-17 18:57:44,853 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 804 transitions. Word has length 145 [2022-03-17 18:57:44,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:44,853 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 804 transitions. [2022-03-17 18:57:44,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:44,853 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 804 transitions. [2022-03-17 18:57:44,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 18:57:44,854 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:44,854 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:44,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:57:44,855 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:44,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:44,855 INFO L85 PathProgramCache]: Analyzing trace with hash 410348179, now seen corresponding path program 1 times [2022-03-17 18:57:44,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:44,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961991184] [2022-03-17 18:57:44,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:44,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-17 18:57:44,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:44,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961991184] [2022-03-17 18:57:44,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961991184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:44,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:44,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:44,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45807189] [2022-03-17 18:57:44,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:44,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:44,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:44,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:44,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:44,948 INFO L87 Difference]: Start difference. First operand 535 states and 804 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:47,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:49,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:49,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:49,919 INFO L93 Difference]: Finished difference Result 560 states and 838 transitions. [2022-03-17 18:57:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:49,919 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 145 [2022-03-17 18:57:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:49,921 INFO L225 Difference]: With dead ends: 560 [2022-03-17 18:57:49,921 INFO L226 Difference]: Without dead ends: 560 [2022-03-17 18:57:49,921 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:49,921 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 25 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:49,922 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 571 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:57:49,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-03-17 18:57:49,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 548. [2022-03-17 18:57:49,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.5064456721915285) internal successors, (818), 543 states have internal predecessors, (818), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 822 transitions. [2022-03-17 18:57:49,939 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 822 transitions. Word has length 145 [2022-03-17 18:57:49,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:49,940 INFO L478 AbstractCegarLoop]: Abstraction has 548 states and 822 transitions. [2022-03-17 18:57:49,940 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 822 transitions. [2022-03-17 18:57:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 18:57:49,942 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:49,942 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:49,942 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:57:49,942 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:49,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1815015926, now seen corresponding path program 1 times [2022-03-17 18:57:49,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:49,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401691167] [2022-03-17 18:57:49,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:49,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:50,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401691167] [2022-03-17 18:57:50,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401691167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:50,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:50,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:50,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012515637] [2022-03-17 18:57:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:50,040 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:50,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:50,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:50,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:50,040 INFO L87 Difference]: Start difference. First operand 548 states and 822 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:53,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:53,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:53,530 INFO L93 Difference]: Finished difference Result 661 states and 975 transitions. [2022-03-17 18:57:53,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:53,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-17 18:57:53,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:53,532 INFO L225 Difference]: With dead ends: 661 [2022-03-17 18:57:53,532 INFO L226 Difference]: Without dead ends: 661 [2022-03-17 18:57:53,533 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:53,533 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 119 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:53,533 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 356 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 18:57:53,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-03-17 18:57:53,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 576. [2022-03-17 18:57:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4956217162872154) internal successors, (854), 571 states have internal predecessors, (854), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 858 transitions. [2022-03-17 18:57:53,539 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 858 transitions. Word has length 147 [2022-03-17 18:57:53,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:53,539 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 858 transitions. [2022-03-17 18:57:53,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:53,539 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 858 transitions. [2022-03-17 18:57:53,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 18:57:53,540 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:53,540 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:53,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:57:53,540 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:53,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:53,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1959841828, now seen corresponding path program 1 times [2022-03-17 18:57:53,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:53,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133583689] [2022-03-17 18:57:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:53,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:53,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:57:53,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:53,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133583689] [2022-03-17 18:57:53,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133583689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:53,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:53,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:53,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979826809] [2022-03-17 18:57:53,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:53,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:53,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:53,642 INFO L87 Difference]: Start difference. First operand 576 states and 858 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:54,740 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 [] [2022-03-17 18:57:56,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:58,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:57:59,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:57:59,736 INFO L93 Difference]: Finished difference Result 647 states and 946 transitions. [2022-03-17 18:57:59,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:57:59,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 18:57:59,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:57:59,738 INFO L225 Difference]: With dead ends: 647 [2022-03-17 18:57:59,738 INFO L226 Difference]: Without dead ends: 647 [2022-03-17 18:57:59,738 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:57:59,738 INFO L912 BasicCegarLoop]: 116 mSDtfsCounter, 118 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:57:59,738 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 336 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:57:59,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-03-17 18:57:59,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-03-17 18:57:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4816112084063047) internal successors, (846), 571 states have internal predecessors, (846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:59,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 850 transitions. [2022-03-17 18:57:59,744 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 850 transitions. Word has length 148 [2022-03-17 18:57:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:57:59,744 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 850 transitions. [2022-03-17 18:57:59,744 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:57:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 850 transitions. [2022-03-17 18:57:59,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-17 18:57:59,745 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:57:59,745 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:57:59,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 18:57:59,745 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:57:59,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:57:59,746 INFO L85 PathProgramCache]: Analyzing trace with hash 180398438, now seen corresponding path program 1 times [2022-03-17 18:57:59,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:57:59,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614922659] [2022-03-17 18:57:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:57:59,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:57:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:57:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:57:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 18:57:59,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:57:59,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614922659] [2022-03-17 18:57:59,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614922659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:57:59,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:57:59,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:57:59,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981135267] [2022-03-17 18:57:59,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:57:59,835 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:57:59,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:57:59,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:57:59,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:57:59,836 INFO L87 Difference]: Start difference. First operand 576 states and 850 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:02,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:04,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:04,917 INFO L93 Difference]: Finished difference Result 597 states and 876 transitions. [2022-03-17 18:58:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:04,917 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 [2022-03-17 18:58:04,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:04,919 INFO L225 Difference]: With dead ends: 597 [2022-03-17 18:58:04,919 INFO L226 Difference]: Without dead ends: 597 [2022-03-17 18:58:04,919 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:04,919 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 43 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:04,920 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 507 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 18:58:04,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-17 18:58:04,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 576. [2022-03-17 18:58:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.479859894921191) internal successors, (845), 571 states have internal predecessors, (845), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 849 transitions. [2022-03-17 18:58:04,925 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 849 transitions. Word has length 154 [2022-03-17 18:58:04,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:04,925 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 849 transitions. [2022-03-17 18:58:04,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:04,925 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 849 transitions. [2022-03-17 18:58:04,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 18:58:04,926 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:04,926 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:04,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 18:58:04,926 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:04,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash -792787074, now seen corresponding path program 1 times [2022-03-17 18:58:04,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:04,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163389668] [2022-03-17 18:58:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:04,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:05,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 18:58:05,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:05,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163389668] [2022-03-17 18:58:05,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163389668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:05,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:05,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:05,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818842990] [2022-03-17 18:58:05,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:05,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:05,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:05,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:05,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:05,032 INFO L87 Difference]: Start difference. First operand 576 states and 849 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:06,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:08,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:10,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:10,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:10,365 INFO L93 Difference]: Finished difference Result 595 states and 873 transitions. [2022-03-17 18:58:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:10,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-17 18:58:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:10,367 INFO L225 Difference]: With dead ends: 595 [2022-03-17 18:58:10,368 INFO L226 Difference]: Without dead ends: 595 [2022-03-17 18:58:10,368 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:10,368 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 40 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:10,368 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 509 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 18:58:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-17 18:58:10,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 576. [2022-03-17 18:58:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.478108581436077) internal successors, (844), 571 states have internal predecessors, (844), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 848 transitions. [2022-03-17 18:58:10,373 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 848 transitions. Word has length 155 [2022-03-17 18:58:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:10,373 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 848 transitions. [2022-03-17 18:58:10,374 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 848 transitions. [2022-03-17 18:58:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-17 18:58:10,375 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:10,375 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:10,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 18:58:10,375 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:10,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash -159357064, now seen corresponding path program 1 times [2022-03-17 18:58:10,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:10,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629823422] [2022-03-17 18:58:10,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:10,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-17 18:58:10,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:10,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629823422] [2022-03-17 18:58:10,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629823422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:10,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:10,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:10,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298189122] [2022-03-17 18:58:10,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:10,475 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:10,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:10,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:10,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:10,476 INFO L87 Difference]: Start difference. First operand 576 states and 848 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:12,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:12,894 INFO L93 Difference]: Finished difference Result 647 states and 935 transitions. [2022-03-17 18:58:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:12,902 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 166 [2022-03-17 18:58:12,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:12,903 INFO L225 Difference]: With dead ends: 647 [2022-03-17 18:58:12,903 INFO L226 Difference]: Without dead ends: 647 [2022-03-17 18:58:12,903 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:12,904 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 122 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:12,904 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:58:12,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-03-17 18:58:12,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-03-17 18:58:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4623467600700526) internal successors, (835), 571 states have internal predecessors, (835), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 839 transitions. [2022-03-17 18:58:12,909 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 839 transitions. Word has length 166 [2022-03-17 18:58:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:12,909 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 839 transitions. [2022-03-17 18:58:12,909 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 839 transitions. [2022-03-17 18:58:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-17 18:58:12,910 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:12,910 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:12,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 18:58:12,911 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:12,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1066888727, now seen corresponding path program 1 times [2022-03-17 18:58:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:12,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923716542] [2022-03-17 18:58:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:12,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-03-17 18:58:13,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:13,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923716542] [2022-03-17 18:58:13,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923716542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:13,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:13,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:13,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874031445] [2022-03-17 18:58:13,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:13,036 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:13,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:13,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:13,037 INFO L87 Difference]: Start difference. First operand 576 states and 839 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:14,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:17,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:18,088 INFO L93 Difference]: Finished difference Result 641 states and 929 transitions. [2022-03-17 18:58:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:18,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-17 18:58:18,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:18,090 INFO L225 Difference]: With dead ends: 641 [2022-03-17 18:58:18,090 INFO L226 Difference]: Without dead ends: 641 [2022-03-17 18:58:18,090 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:18,090 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 71 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:18,090 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 583 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:58:18,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-03-17 18:58:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 587. [2022-03-17 18:58:18,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 582 states have (on average 1.4621993127147765) internal successors, (851), 582 states have internal predecessors, (851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:18,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 855 transitions. [2022-03-17 18:58:18,095 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 855 transitions. Word has length 166 [2022-03-17 18:58:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:18,095 INFO L478 AbstractCegarLoop]: Abstraction has 587 states and 855 transitions. [2022-03-17 18:58:18,095 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:18,095 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 855 transitions. [2022-03-17 18:58:18,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-17 18:58:18,096 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:18,096 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:18,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:58:18,097 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:18,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:18,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1119849675, now seen corresponding path program 1 times [2022-03-17 18:58:18,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:18,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872978876] [2022-03-17 18:58:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:18,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:18,184 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-17 18:58:18,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:18,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872978876] [2022-03-17 18:58:18,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872978876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:18,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:18,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:18,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672171192] [2022-03-17 18:58:18,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:18,185 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:18,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:18,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:18,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:18,186 INFO L87 Difference]: Start difference. First operand 587 states and 855 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:20,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:21,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:21,535 INFO L93 Difference]: Finished difference Result 616 states and 895 transitions. [2022-03-17 18:58:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:21,535 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 167 [2022-03-17 18:58:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:21,537 INFO L225 Difference]: With dead ends: 616 [2022-03-17 18:58:21,537 INFO L226 Difference]: Without dead ends: 616 [2022-03-17 18:58:21,537 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:21,537 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 27 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:21,537 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 573 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:58:21,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-03-17 18:58:21,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 602. [2022-03-17 18:58:21,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4606365159128978) internal successors, (872), 597 states have internal predecessors, (872), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 876 transitions. [2022-03-17 18:58:21,542 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 876 transitions. Word has length 167 [2022-03-17 18:58:21,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:21,542 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 876 transitions. [2022-03-17 18:58:21,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:21,542 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 876 transitions. [2022-03-17 18:58:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 18:58:21,543 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:21,543 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:21,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:58:21,543 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:21,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1663236114, now seen corresponding path program 1 times [2022-03-17 18:58:21,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:21,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016518073] [2022-03-17 18:58:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-17 18:58:21,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:21,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016518073] [2022-03-17 18:58:21,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016518073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:21,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:21,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488456731] [2022-03-17 18:58:21,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:21,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:21,658 INFO L87 Difference]: Start difference. First operand 602 states and 876 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:23,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:25,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:27,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:27,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:27,541 INFO L93 Difference]: Finished difference Result 673 states and 963 transitions. [2022-03-17 18:58:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:27,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 18:58:27,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:27,543 INFO L225 Difference]: With dead ends: 673 [2022-03-17 18:58:27,543 INFO L226 Difference]: Without dead ends: 673 [2022-03-17 18:58:27,543 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:27,544 INFO L912 BasicCegarLoop]: 116 mSDtfsCounter, 120 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:27,544 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 336 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 18:58:27,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-03-17 18:58:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 602. [2022-03-17 18:58:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4455611390284757) internal successors, (863), 597 states have internal predecessors, (863), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 867 transitions. [2022-03-17 18:58:27,548 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 867 transitions. Word has length 172 [2022-03-17 18:58:27,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:27,549 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 867 transitions. [2022-03-17 18:58:27,549 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 867 transitions. [2022-03-17 18:58:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 18:58:27,550 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:27,550 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:27,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 18:58:27,550 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:27,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1055786399, now seen corresponding path program 1 times [2022-03-17 18:58:27,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:27,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455477687] [2022-03-17 18:58:27,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:27,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:27,645 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 18:58:27,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:27,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455477687] [2022-03-17 18:58:27,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455477687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:27,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:27,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:27,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385142541] [2022-03-17 18:58:27,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:27,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:27,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:27,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:27,647 INFO L87 Difference]: Start difference. First operand 602 states and 867 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:29,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:29,969 INFO L93 Difference]: Finished difference Result 1144 states and 1654 transitions. [2022-03-17 18:58:29,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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 172 [2022-03-17 18:58:29,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:29,972 INFO L225 Difference]: With dead ends: 1144 [2022-03-17 18:58:29,972 INFO L226 Difference]: Without dead ends: 1144 [2022-03-17 18:58:29,973 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:29,973 INFO L912 BasicCegarLoop]: 372 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:29,973 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 566 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:58:29,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-03-17 18:58:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2022-03-17 18:58:29,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4486391571553994) internal successors, (1650), 1139 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:29,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1654 transitions. [2022-03-17 18:58:29,981 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1654 transitions. Word has length 172 [2022-03-17 18:58:29,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:29,981 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1654 transitions. [2022-03-17 18:58:29,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:29,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1654 transitions. [2022-03-17 18:58:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 18:58:29,983 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:29,983 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:29,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 18:58:29,983 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:29,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1289488092, now seen corresponding path program 1 times [2022-03-17 18:58:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:29,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002759193] [2022-03-17 18:58:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-17 18:58:30,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:30,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002759193] [2022-03-17 18:58:30,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002759193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:30,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:30,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:30,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199356040] [2022-03-17 18:58:30,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:30,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:30,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:30,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:30,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:30,092 INFO L87 Difference]: Start difference. First operand 1144 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:31,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:33,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:35,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:35,350 INFO L93 Difference]: Finished difference Result 1177 states and 1693 transitions. [2022-03-17 18:58:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:35,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 18:58:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:35,353 INFO L225 Difference]: With dead ends: 1177 [2022-03-17 18:58:35,353 INFO L226 Difference]: Without dead ends: 1177 [2022-03-17 18:58:35,353 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:35,354 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 45 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:35,354 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 525 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 18:58:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-03-17 18:58:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1144. [2022-03-17 18:58:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.446883230904302) internal successors, (1648), 1139 states have internal predecessors, (1648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1652 transitions. [2022-03-17 18:58:35,362 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1652 transitions. Word has length 173 [2022-03-17 18:58:35,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:35,363 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1652 transitions. [2022-03-17 18:58:35,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1652 transitions. [2022-03-17 18:58:35,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 18:58:35,364 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:35,364 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:35,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 18:58:35,364 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:35,365 INFO L85 PathProgramCache]: Analyzing trace with hash 434121896, now seen corresponding path program 1 times [2022-03-17 18:58:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604968945] [2022-03-17 18:58:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:35,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:58:35,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:35,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604968945] [2022-03-17 18:58:35,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604968945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:35,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:35,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:35,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605343336] [2022-03-17 18:58:35,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:35,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:35,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:35,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:35,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:35,458 INFO L87 Difference]: Start difference. First operand 1144 states and 1652 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:38,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:39,370 INFO L93 Difference]: Finished difference Result 1654 states and 2391 transitions. [2022-03-17 18:58:39,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 18:58:39,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:39,374 INFO L225 Difference]: With dead ends: 1654 [2022-03-17 18:58:39,374 INFO L226 Difference]: Without dead ends: 1654 [2022-03-17 18:58:39,375 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:39,376 INFO L912 BasicCegarLoop]: 373 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:39,376 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 567 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 18:58:39,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-03-17 18:58:39,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2022-03-17 18:58:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1649 states have (on average 1.4475439660400242) internal successors, (2387), 1649 states have internal predecessors, (2387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2391 transitions. [2022-03-17 18:58:39,388 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2391 transitions. Word has length 173 [2022-03-17 18:58:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:39,388 INFO L478 AbstractCegarLoop]: Abstraction has 1654 states and 2391 transitions. [2022-03-17 18:58:39,389 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2391 transitions. [2022-03-17 18:58:39,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 18:58:39,390 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:39,390 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:39,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 18:58:39,391 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:39,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash 201941755, now seen corresponding path program 1 times [2022-03-17 18:58:39,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:39,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609851758] [2022-03-17 18:58:39,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:39,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 18:58:39,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:39,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609851758] [2022-03-17 18:58:39,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609851758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:39,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:39,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:39,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931607278] [2022-03-17 18:58:39,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:39,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:39,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:39,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:39,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:39,499 INFO L87 Difference]: Start difference. First operand 1654 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:41,630 INFO L93 Difference]: Finished difference Result 2155 states and 3117 transitions. [2022-03-17 18:58:41,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:41,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 18:58:41,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:41,635 INFO L225 Difference]: With dead ends: 2155 [2022-03-17 18:58:41,635 INFO L226 Difference]: Without dead ends: 2155 [2022-03-17 18:58:41,635 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:41,635 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:41,636 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 447 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 18:58:41,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2022-03-17 18:58:41,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2155. [2022-03-17 18:58:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2150 states have (on average 1.4479069767441861) internal successors, (3113), 2150 states have internal predecessors, (3113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:41,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3117 transitions. [2022-03-17 18:58:41,651 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3117 transitions. Word has length 174 [2022-03-17 18:58:41,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:41,651 INFO L478 AbstractCegarLoop]: Abstraction has 2155 states and 3117 transitions. [2022-03-17 18:58:41,651 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3117 transitions. [2022-03-17 18:58:41,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 18:58:41,654 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:41,654 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:41,654 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 18:58:41,654 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:41,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:41,654 INFO L85 PathProgramCache]: Analyzing trace with hash -222767815, now seen corresponding path program 1 times [2022-03-17 18:58:41,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:41,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423451196] [2022-03-17 18:58:41,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:41,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:41,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-17 18:58:41,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:41,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423451196] [2022-03-17 18:58:41,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423451196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:41,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:41,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:41,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706878062] [2022-03-17 18:58:41,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:41,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:41,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:41,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:41,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:41,729 INFO L87 Difference]: Start difference. First operand 2155 states and 3117 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:43,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:44,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:44,255 INFO L93 Difference]: Finished difference Result 2157 states and 3119 transitions. [2022-03-17 18:58:44,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:44,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 18:58:44,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:44,260 INFO L225 Difference]: With dead ends: 2157 [2022-03-17 18:58:44,260 INFO L226 Difference]: Without dead ends: 2157 [2022-03-17 18:58:44,260 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:44,260 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:44,261 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:58:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2022-03-17 18:58:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2157. [2022-03-17 18:58:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2152 states have (on average 1.4474907063197027) internal successors, (3115), 2152 states have internal predecessors, (3115), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 3119 transitions. [2022-03-17 18:58:44,278 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 3119 transitions. Word has length 174 [2022-03-17 18:58:44,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:44,278 INFO L478 AbstractCegarLoop]: Abstraction has 2157 states and 3119 transitions. [2022-03-17 18:58:44,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:44,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 3119 transitions. [2022-03-17 18:58:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 18:58:44,281 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:44,281 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:44,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 18:58:44,281 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:44,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:44,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1725486435, now seen corresponding path program 1 times [2022-03-17 18:58:44,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:44,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934508879] [2022-03-17 18:58:44,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:44,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-03-17 18:58:44,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:44,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934508879] [2022-03-17 18:58:44,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934508879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:44,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:44,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818427081] [2022-03-17 18:58:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:44,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:44,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:44,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:44,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:44,431 INFO L87 Difference]: Start difference. First operand 2157 states and 3119 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:45,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:47,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:49,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:50,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:51,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:51,064 INFO L93 Difference]: Finished difference Result 2414 states and 3466 transitions. [2022-03-17 18:58:51,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:51,064 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 267 [2022-03-17 18:58:51,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:51,074 INFO L225 Difference]: With dead ends: 2414 [2022-03-17 18:58:51,074 INFO L226 Difference]: Without dead ends: 2414 [2022-03-17 18:58:51,074 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:51,075 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 70 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:51,075 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 597 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 18:58:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-03-17 18:58:51,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2201. [2022-03-17 18:58:51,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2196 states have (on average 1.447632058287796) internal successors, (3179), 2196 states have internal predecessors, (3179), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3183 transitions. [2022-03-17 18:58:51,098 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3183 transitions. Word has length 267 [2022-03-17 18:58:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:51,098 INFO L478 AbstractCegarLoop]: Abstraction has 2201 states and 3183 transitions. [2022-03-17 18:58:51,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3183 transitions. [2022-03-17 18:58:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 18:58:51,101 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:51,101 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-17 18:58:51,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 18:58:51,101 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:51,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:51,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1784133777, now seen corresponding path program 1 times [2022-03-17 18:58:51,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:51,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516302049] [2022-03-17 18:58:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:51,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:51,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:51,219 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-17 18:58:51,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:51,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516302049] [2022-03-17 18:58:51,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516302049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:51,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:51,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:51,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680784162] [2022-03-17 18:58:51,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:51,220 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:51,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:51,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:51,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:51,220 INFO L87 Difference]: Start difference. First operand 2201 states and 3183 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:54,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:56,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:57,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:57,325 INFO L93 Difference]: Finished difference Result 2406 states and 3454 transitions. [2022-03-17 18:58:57,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:57,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-17 18:58:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:57,329 INFO L225 Difference]: With dead ends: 2406 [2022-03-17 18:58:57,329 INFO L226 Difference]: Without dead ends: 2406 [2022-03-17 18:58:57,329 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:58:57,329 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 48 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:57,330 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 593 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:58:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-03-17 18:58:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2281. [2022-03-17 18:58:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2276 states have (on average 1.4442003514938488) internal successors, (3287), 2276 states have internal predecessors, (3287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3291 transitions. [2022-03-17 18:58:57,345 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3291 transitions. Word has length 268 [2022-03-17 18:58:57,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:57,345 INFO L478 AbstractCegarLoop]: Abstraction has 2281 states and 3291 transitions. [2022-03-17 18:58:57,345 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:57,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3291 transitions. [2022-03-17 18:58:57,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-17 18:58:57,348 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:57,348 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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] [2022-03-17 18:58:57,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 18:58:57,348 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:57,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:57,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1081130711, now seen corresponding path program 1 times [2022-03-17 18:58:57,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:57,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306897521] [2022-03-17 18:58:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:57,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:57,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-17 18:58:57,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:57,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306897521] [2022-03-17 18:58:57,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306897521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:57,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:57,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:57,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393568072] [2022-03-17 18:58:57,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:57,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:57,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:57,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:57,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:57,471 INFO L87 Difference]: Start difference. First operand 2281 states and 3291 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:59,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:01,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:02,028 INFO L93 Difference]: Finished difference Result 2406 states and 3450 transitions. [2022-03-17 18:59:02,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-03-17 18:59:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:02,032 INFO L225 Difference]: With dead ends: 2406 [2022-03-17 18:59:02,032 INFO L226 Difference]: Without dead ends: 2406 [2022-03-17 18:59:02,032 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:02,033 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 43 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:02,033 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 591 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 18:59:02,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-03-17 18:59:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2297. [2022-03-17 18:59:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 2292 states have (on average 1.4445898778359512) internal successors, (3311), 2292 states have internal predecessors, (3311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3315 transitions. [2022-03-17 18:59:02,050 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3315 transitions. Word has length 277 [2022-03-17 18:59:02,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:02,050 INFO L478 AbstractCegarLoop]: Abstraction has 2297 states and 3315 transitions. [2022-03-17 18:59:02,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3315 transitions. [2022-03-17 18:59:02,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-17 18:59:02,053 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:02,053 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 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] [2022-03-17 18:59:02,053 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 18:59:02,053 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:02,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1245485029, now seen corresponding path program 1 times [2022-03-17 18:59:02,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:02,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361770619] [2022-03-17 18:59:02,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:02,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:02,197 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-17 18:59:02,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:02,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361770619] [2022-03-17 18:59:02,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361770619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:02,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:02,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:02,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979827032] [2022-03-17 18:59:02,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:02,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:02,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:02,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:02,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:02,198 INFO L87 Difference]: Start difference. First operand 2297 states and 3315 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:03,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:05,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:07,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:08,287 INFO L93 Difference]: Finished difference Result 2398 states and 3438 transitions. [2022-03-17 18:59:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:08,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-03-17 18:59:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:08,290 INFO L225 Difference]: With dead ends: 2398 [2022-03-17 18:59:08,290 INFO L226 Difference]: Without dead ends: 2398 [2022-03-17 18:59:08,290 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:08,291 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 40 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:08,291 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 587 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 501 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:59:08,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-03-17 18:59:08,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2301. [2022-03-17 18:59:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.443815331010453) internal successors, (3315), 2296 states have internal predecessors, (3315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3319 transitions. [2022-03-17 18:59:08,307 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3319 transitions. Word has length 278 [2022-03-17 18:59:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:08,308 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3319 transitions. [2022-03-17 18:59:08,308 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3319 transitions. [2022-03-17 18:59:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-17 18:59:08,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:08,311 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:08,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 18:59:08,311 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:08,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:08,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2131122745, now seen corresponding path program 1 times [2022-03-17 18:59:08,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:08,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955566190] [2022-03-17 18:59:08,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:08,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-03-17 18:59:08,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:08,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955566190] [2022-03-17 18:59:08,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955566190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:08,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:08,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:08,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958660935] [2022-03-17 18:59:08,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:08,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:08,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:08,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:08,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:08,476 INFO L87 Difference]: Start difference. First operand 2301 states and 3319 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:11,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:13,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:14,703 INFO L93 Difference]: Finished difference Result 2390 states and 3422 transitions. [2022-03-17 18:59:14,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:14,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 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 296 [2022-03-17 18:59:14,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:14,706 INFO L225 Difference]: With dead ends: 2390 [2022-03-17 18:59:14,706 INFO L226 Difference]: Without dead ends: 2390 [2022-03-17 18:59:14,706 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:14,707 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 47 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:14,708 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 585 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:59:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-17 18:59:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2301. [2022-03-17 18:59:14,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4420731707317074) internal successors, (3311), 2296 states have internal predecessors, (3311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3315 transitions. [2022-03-17 18:59:14,723 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3315 transitions. Word has length 296 [2022-03-17 18:59:14,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:14,723 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3315 transitions. [2022-03-17 18:59:14,723 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:14,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3315 transitions. [2022-03-17 18:59:14,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-17 18:59:14,726 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:14,726 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-17 18:59:14,726 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 18:59:14,726 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:14,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash 522812222, now seen corresponding path program 1 times [2022-03-17 18:59:14,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:14,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106749341] [2022-03-17 18:59:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:14,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:14,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-17 18:59:14,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:14,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106749341] [2022-03-17 18:59:14,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106749341] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:59:14,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807625449] [2022-03-17 18:59:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:14,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:59:14,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:59:14,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 18:59:14,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 18:59:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:15,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-17 18:59:15,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:59:15,910 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:59:15,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 18:59:15,954 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:59:15,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:59:16,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 18:59:16,122 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:59:16,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 18:59:16,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 18:59:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 477 proven. 64 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-03-17 18:59:16,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:59:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-17 18:59:16,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807625449] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:59:16,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:59:16,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-03-17 18:59:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314384992] [2022-03-17 18:59:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:16,676 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:59:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:59:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:59:16,676 INFO L87 Difference]: Start difference. First operand 2301 states and 3315 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:17,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:17,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:17,991 INFO L93 Difference]: Finished difference Result 2567 states and 3658 transitions. [2022-03-17 18:59:17,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:59:17,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-03-17 18:59:17,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:17,995 INFO L225 Difference]: With dead ends: 2567 [2022-03-17 18:59:17,995 INFO L226 Difference]: Without dead ends: 2567 [2022-03-17 18:59:17,995 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:59:17,995 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 105 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:17,995 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 409 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-17 18:59:17,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2022-03-17 18:59:18,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2301. [2022-03-17 18:59:18,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4390243902439024) internal successors, (3304), 2296 states have internal predecessors, (3304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3308 transitions. [2022-03-17 18:59:18,013 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3308 transitions. Word has length 297 [2022-03-17 18:59:18,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:18,013 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3308 transitions. [2022-03-17 18:59:18,014 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:18,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3308 transitions. [2022-03-17 18:59:18,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-17 18:59:18,016 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:18,017 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-17 18:59:18,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 18:59:18,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-03-17 18:59:18,232 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:18,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:18,232 INFO L85 PathProgramCache]: Analyzing trace with hash 307983069, now seen corresponding path program 1 times [2022-03-17 18:59:18,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:18,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208035425] [2022-03-17 18:59:18,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:18,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-17 18:59:18,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:18,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208035425] [2022-03-17 18:59:18,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208035425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:18,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:18,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 18:59:18,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661567943] [2022-03-17 18:59:18,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:18,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 18:59:18,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:18,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 18:59:18,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 18:59:18,464 INFO L87 Difference]: Start difference. First operand 2301 states and 3308 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:19,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:21,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:23,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:26,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:28,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:29,304 INFO L93 Difference]: Finished difference Result 4380 states and 6286 transitions. [2022-03-17 18:59:29,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 18:59:29,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 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 297 [2022-03-17 18:59:29,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:29,310 INFO L225 Difference]: With dead ends: 4380 [2022-03-17 18:59:29,310 INFO L226 Difference]: Without dead ends: 4380 [2022-03-17 18:59:29,310 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:59:29,311 INFO L912 BasicCegarLoop]: 319 mSDtfsCounter, 190 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 50 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:29,311 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1263 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1389 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2022-03-17 18:59:29,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-03-17 18:59:29,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4121. [2022-03-17 18:59:29,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 4116 states have (on average 1.4523809523809523) internal successors, (5978), 4116 states have internal predecessors, (5978), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:29,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5982 transitions. [2022-03-17 18:59:29,368 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5982 transitions. Word has length 297 [2022-03-17 18:59:29,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:29,368 INFO L478 AbstractCegarLoop]: Abstraction has 4121 states and 5982 transitions. [2022-03-17 18:59:29,368 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:29,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5982 transitions. [2022-03-17 18:59:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-17 18:59:29,373 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:29,374 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:29,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 18:59:29,374 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:29,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash -922148886, now seen corresponding path program 1 times [2022-03-17 18:59:29,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:29,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138649735] [2022-03-17 18:59:29,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:29,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-03-17 18:59:29,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:29,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138649735] [2022-03-17 18:59:29,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138649735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:29,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:29,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:29,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867933370] [2022-03-17 18:59:29,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:29,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:29,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:29,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:29,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:29,504 INFO L87 Difference]: Start difference. First operand 4121 states and 5982 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:31,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:33,312 INFO L93 Difference]: Finished difference Result 4607 states and 6640 transitions. [2022-03-17 18:59:33,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:33,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-03-17 18:59:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:33,318 INFO L225 Difference]: With dead ends: 4607 [2022-03-17 18:59:33,318 INFO L226 Difference]: Without dead ends: 4607 [2022-03-17 18:59:33,319 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:33,319 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:33,319 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 18:59:33,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4607 states. [2022-03-17 18:59:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4607 to 4209. [2022-03-17 18:59:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4204 states have (on average 1.4524262607040914) internal successors, (6106), 4204 states have internal predecessors, (6106), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 6110 transitions. [2022-03-17 18:59:33,352 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 6110 transitions. Word has length 298 [2022-03-17 18:59:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:33,352 INFO L478 AbstractCegarLoop]: Abstraction has 4209 states and 6110 transitions. [2022-03-17 18:59:33,352 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 6110 transitions. [2022-03-17 18:59:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-17 18:59:33,358 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:33,358 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-17 18:59:33,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 18:59:33,358 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:33,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1375885393, now seen corresponding path program 1 times [2022-03-17 18:59:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:33,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394272462] [2022-03-17 18:59:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:33,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-17 18:59:33,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:33,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394272462] [2022-03-17 18:59:33,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394272462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:33,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:33,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:33,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383037765] [2022-03-17 18:59:33,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:33,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:33,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:33,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:33,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:33,514 INFO L87 Difference]: Start difference. First operand 4209 states and 6110 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:35,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:37,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:38,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:40,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:41,279 INFO L93 Difference]: Finished difference Result 4355 states and 6280 transitions. [2022-03-17 18:59:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:41,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 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 298 [2022-03-17 18:59:41,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:41,285 INFO L225 Difference]: With dead ends: 4355 [2022-03-17 18:59:41,285 INFO L226 Difference]: Without dead ends: 4323 [2022-03-17 18:59:41,285 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:41,286 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 31 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:41,286 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 581 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 18:59:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2022-03-17 18:59:41,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4201. [2022-03-17 18:59:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4201 states, 4196 states have (on average 1.4513822688274547) internal successors, (6090), 4196 states have internal predecessors, (6090), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4201 states to 4201 states and 6094 transitions. [2022-03-17 18:59:41,320 INFO L78 Accepts]: Start accepts. Automaton has 4201 states and 6094 transitions. Word has length 298 [2022-03-17 18:59:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:41,320 INFO L478 AbstractCegarLoop]: Abstraction has 4201 states and 6094 transitions. [2022-03-17 18:59:41,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4201 states and 6094 transitions. [2022-03-17 18:59:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-17 18:59:41,325 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:41,325 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:41,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 18:59:41,325 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:41,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1644493762, now seen corresponding path program 1 times [2022-03-17 18:59:41,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:41,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105273276] [2022-03-17 18:59:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:41,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-03-17 18:59:41,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:41,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105273276] [2022-03-17 18:59:41,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105273276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:41,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:41,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:41,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627401116] [2022-03-17 18:59:41,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:41,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:41,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:41,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:41,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:41,494 INFO L87 Difference]: Start difference. First operand 4201 states and 6094 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:44,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:45,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:45,952 INFO L93 Difference]: Finished difference Result 4307 states and 6218 transitions. [2022-03-17 18:59:45,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:45,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-03-17 18:59:45,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:45,958 INFO L225 Difference]: With dead ends: 4307 [2022-03-17 18:59:45,959 INFO L226 Difference]: Without dead ends: 4307 [2022-03-17 18:59:45,960 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:45,960 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 14 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:45,960 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 553 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 18:59:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2022-03-17 18:59:45,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4281. [2022-03-17 18:59:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4276 states have (on average 1.4466791393826006) internal successors, (6186), 4276 states have internal predecessors, (6186), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 6190 transitions. [2022-03-17 18:59:45,996 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 6190 transitions. Word has length 299 [2022-03-17 18:59:45,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:45,996 INFO L478 AbstractCegarLoop]: Abstraction has 4281 states and 6190 transitions. [2022-03-17 18:59:45,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 6190 transitions. [2022-03-17 18:59:46,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-17 18:59:46,001 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:46,001 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:46,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 18:59:46,002 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:46,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:46,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1431479809, now seen corresponding path program 1 times [2022-03-17 18:59:46,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:46,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41096310] [2022-03-17 18:59:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:46,143 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-03-17 18:59:46,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:46,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41096310] [2022-03-17 18:59:46,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41096310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:46,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:46,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:46,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781530575] [2022-03-17 18:59:46,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:46,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:46,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:46,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:46,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:46,145 INFO L87 Difference]: Start difference. First operand 4281 states and 6190 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:48,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:48,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:48,539 INFO L93 Difference]: Finished difference Result 4655 states and 6684 transitions. [2022-03-17 18:59:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:48,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-03-17 18:59:48,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:48,548 INFO L225 Difference]: With dead ends: 4655 [2022-03-17 18:59:48,548 INFO L226 Difference]: Without dead ends: 4655 [2022-03-17 18:59:48,548 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:48,548 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:48,549 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:59:48,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2022-03-17 18:59:48,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4325. [2022-03-17 18:59:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4320 states have (on average 1.4458333333333333) internal successors, (6246), 4320 states have internal predecessors, (6246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:48,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6250 transitions. [2022-03-17 18:59:48,580 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 6250 transitions. Word has length 299 [2022-03-17 18:59:48,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:48,581 INFO L478 AbstractCegarLoop]: Abstraction has 4325 states and 6250 transitions. [2022-03-17 18:59:48,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 6250 transitions. [2022-03-17 18:59:48,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-03-17 18:59:48,586 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:48,586 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:48,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-17 18:59:48,586 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:48,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:48,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1259862963, now seen corresponding path program 1 times [2022-03-17 18:59:48,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:48,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175718879] [2022-03-17 18:59:48,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:48,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:48,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-03-17 18:59:48,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:48,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175718879] [2022-03-17 18:59:48,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175718879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:48,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:48,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:48,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818061457] [2022-03-17 18:59:48,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:48,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:48,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:48,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:48,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:48,709 INFO L87 Difference]: Start difference. First operand 4325 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:52,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:52,506 INFO L93 Difference]: Finished difference Result 4639 states and 6660 transitions. [2022-03-17 18:59:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:52,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 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 300 [2022-03-17 18:59:52,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:52,510 INFO L225 Difference]: With dead ends: 4639 [2022-03-17 18:59:52,510 INFO L226 Difference]: Without dead ends: 4639 [2022-03-17 18:59:52,510 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:52,510 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 47 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:52,510 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 579 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 18:59:52,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-03-17 18:59:52,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4417. [2022-03-17 18:59:52,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.442883046237534) internal successors, (6366), 4412 states have internal predecessors, (6366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:52,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6370 transitions. [2022-03-17 18:59:52,554 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6370 transitions. Word has length 300 [2022-03-17 18:59:52,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:52,554 INFO L478 AbstractCegarLoop]: Abstraction has 4417 states and 6370 transitions. [2022-03-17 18:59:52,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:52,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6370 transitions. [2022-03-17 18:59:52,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-03-17 18:59:52,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:52,560 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:52,560 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 18:59:52,560 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:52,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:52,560 INFO L85 PathProgramCache]: Analyzing trace with hash 502472203, now seen corresponding path program 1 times [2022-03-17 18:59:52,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:52,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203476442] [2022-03-17 18:59:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:52,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-03-17 18:59:52,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:52,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203476442] [2022-03-17 18:59:52,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203476442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:52,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:52,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:52,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67086683] [2022-03-17 18:59:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:52,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:52,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:52,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:52,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:52,682 INFO L87 Difference]: Start difference. First operand 4417 states and 6370 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:54,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:56,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:57,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:58,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:58,396 INFO L93 Difference]: Finished difference Result 4539 states and 6512 transitions. [2022-03-17 18:59:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:58,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 309 [2022-03-17 18:59:58,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:58,400 INFO L225 Difference]: With dead ends: 4539 [2022-03-17 18:59:58,401 INFO L226 Difference]: Without dead ends: 4539 [2022-03-17 18:59:58,401 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:59:58,401 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 30 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:58,401 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 18:59:58,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2022-03-17 18:59:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4417. [2022-03-17 18:59:58,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.4410698096101542) internal successors, (6358), 4412 states have internal predecessors, (6358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:58,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6362 transitions. [2022-03-17 18:59:58,436 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6362 transitions. Word has length 309 [2022-03-17 18:59:58,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:58,436 INFO L478 AbstractCegarLoop]: Abstraction has 4417 states and 6362 transitions. [2022-03-17 18:59:58,436 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:58,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6362 transitions. [2022-03-17 18:59:58,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-03-17 18:59:58,455 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:58,455 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:58,455 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 18:59:58,456 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1430463166, now seen corresponding path program 1 times [2022-03-17 18:59:58,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:58,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836773096] [2022-03-17 18:59:58,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:58,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:58,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:58,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-03-17 18:59:58,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:58,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836773096] [2022-03-17 18:59:58,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836773096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:58,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:58,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:58,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602108649] [2022-03-17 18:59:58,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:58,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:58,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:58,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:58,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:58,593 INFO L87 Difference]: Start difference. First operand 4417 states and 6362 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:00,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:02,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:03,323 INFO L93 Difference]: Finished difference Result 4507 states and 6464 transitions. [2022-03-17 19:00:03,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:03,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 310 [2022-03-17 19:00:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:03,327 INFO L225 Difference]: With dead ends: 4507 [2022-03-17 19:00:03,327 INFO L226 Difference]: Without dead ends: 4435 [2022-03-17 19:00:03,327 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:03,328 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 26 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:03,328 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 571 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 19:00:03,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2022-03-17 19:00:03,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4345. [2022-03-17 19:00:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 4340 states have (on average 1.4465437788018434) internal successors, (6278), 4340 states have internal predecessors, (6278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:03,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 6282 transitions. [2022-03-17 19:00:03,358 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 6282 transitions. Word has length 310 [2022-03-17 19:00:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:03,359 INFO L478 AbstractCegarLoop]: Abstraction has 4345 states and 6282 transitions. [2022-03-17 19:00:03,359 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:03,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 6282 transitions. [2022-03-17 19:00:03,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-03-17 19:00:03,363 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:03,363 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:03,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-17 19:00:03,363 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:03,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:03,364 INFO L85 PathProgramCache]: Analyzing trace with hash -953423688, now seen corresponding path program 1 times [2022-03-17 19:00:03,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:03,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695346118] [2022-03-17 19:00:03,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:03,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:03,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-03-17 19:00:03,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:03,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695346118] [2022-03-17 19:00:03,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695346118] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:03,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:03,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:03,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268826615] [2022-03-17 19:00:03,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:03,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:03,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:03,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:03,546 INFO L87 Difference]: Start difference. First operand 4345 states and 6282 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:04,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:07,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:07,791 INFO L93 Difference]: Finished difference Result 4403 states and 6344 transitions. [2022-03-17 19:00:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 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 318 [2022-03-17 19:00:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:07,795 INFO L225 Difference]: With dead ends: 4403 [2022-03-17 19:00:07,795 INFO L226 Difference]: Without dead ends: 4387 [2022-03-17 19:00:07,795 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:07,796 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:07,796 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 563 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 409 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 19:00:07,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-03-17 19:00:07,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-03-17 19:00:07,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.446345975948196) internal successors, (6254), 4324 states have internal predecessors, (6254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6258 transitions. [2022-03-17 19:00:07,828 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6258 transitions. Word has length 318 [2022-03-17 19:00:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:07,828 INFO L478 AbstractCegarLoop]: Abstraction has 4329 states and 6258 transitions. [2022-03-17 19:00:07,829 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6258 transitions. [2022-03-17 19:00:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-03-17 19:00:07,833 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:07,833 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-17 19:00:07,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-17 19:00:07,833 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:07,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:07,834 INFO L85 PathProgramCache]: Analyzing trace with hash -893601060, now seen corresponding path program 1 times [2022-03-17 19:00:07,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:07,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964918303] [2022-03-17 19:00:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:07,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:08,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:08,022 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-17 19:00:08,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:08,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964918303] [2022-03-17 19:00:08,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964918303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:08,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:08,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:08,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040376536] [2022-03-17 19:00:08,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:08,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:08,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:08,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:08,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:08,027 INFO L87 Difference]: Start difference. First operand 4329 states and 6258 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:09,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:11,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:12,520 INFO L93 Difference]: Finished difference Result 4387 states and 6320 transitions. [2022-03-17 19:00:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:12,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 319 [2022-03-17 19:00:12,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:12,524 INFO L225 Difference]: With dead ends: 4387 [2022-03-17 19:00:12,524 INFO L226 Difference]: Without dead ends: 4387 [2022-03-17 19:00:12,524 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:12,525 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:12,525 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 561 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 19:00:12,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-03-17 19:00:12,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-03-17 19:00:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.4444958371877892) internal successors, (6246), 4324 states have internal predecessors, (6246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6250 transitions. [2022-03-17 19:00:12,552 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6250 transitions. Word has length 319 [2022-03-17 19:00:12,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:12,553 INFO L478 AbstractCegarLoop]: Abstraction has 4329 states and 6250 transitions. [2022-03-17 19:00:12,553 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6250 transitions. [2022-03-17 19:00:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-03-17 19:00:12,557 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:12,557 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:12,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-17 19:00:12,557 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:12,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:12,558 INFO L85 PathProgramCache]: Analyzing trace with hash -801415708, now seen corresponding path program 1 times [2022-03-17 19:00:12,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:12,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508221935] [2022-03-17 19:00:12,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:12,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:12,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-17 19:00:12,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:12,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508221935] [2022-03-17 19:00:12,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508221935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:12,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:12,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:00:12,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973493264] [2022-03-17 19:00:12,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:12,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:00:12,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:12,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:00:12,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:00:12,723 INFO L87 Difference]: Start difference. First operand 4329 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:15,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:17,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:18,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:18,109 INFO L93 Difference]: Finished difference Result 4355 states and 6270 transitions. [2022-03-17 19:00:18,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:00:18,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 320 [2022-03-17 19:00:18,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:18,113 INFO L225 Difference]: With dead ends: 4355 [2022-03-17 19:00:18,113 INFO L226 Difference]: Without dead ends: 4339 [2022-03-17 19:00:18,113 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:00:18,114 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 15 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:18,114 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 553 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 19:00:18,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-03-17 19:00:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4145. [2022-03-17 19:00:18,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.448792270531401) internal successors, (5998), 4140 states have internal predecessors, (5998), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:18,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6002 transitions. [2022-03-17 19:00:18,147 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6002 transitions. Word has length 320 [2022-03-17 19:00:18,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:18,147 INFO L478 AbstractCegarLoop]: Abstraction has 4145 states and 6002 transitions. [2022-03-17 19:00:18,147 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6002 transitions. [2022-03-17 19:00:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-17 19:00:18,152 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:18,152 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:18,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-17 19:00:18,152 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:18,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:18,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1716898329, now seen corresponding path program 1 times [2022-03-17 19:00:18,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:18,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390840126] [2022-03-17 19:00:18,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:18,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:18,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:18,578 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2022-03-17 19:00:18,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:18,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390840126] [2022-03-17 19:00:18,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390840126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:00:18,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:00:18,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 19:00:18,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262181173] [2022-03-17 19:00:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:00:18,578 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 19:00:18,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:18,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 19:00:18,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 19:00:18,579 INFO L87 Difference]: Start difference. First operand 4145 states and 6002 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:19,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:21,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:23,874 INFO L93 Difference]: Finished difference Result 4153 states and 6012 transitions. [2022-03-17 19:00:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 19:00:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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 326 [2022-03-17 19:00:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:23,891 INFO L225 Difference]: With dead ends: 4153 [2022-03-17 19:00:23,891 INFO L226 Difference]: Without dead ends: 4145 [2022-03-17 19:00:23,891 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-17 19:00:23,891 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 7 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:23,892 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 822 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 19:00:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2022-03-17 19:00:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4145. [2022-03-17 19:00:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.4485507246376812) internal successors, (5997), 4140 states have internal predecessors, (5997), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6001 transitions. [2022-03-17 19:00:23,915 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6001 transitions. Word has length 326 [2022-03-17 19:00:23,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:23,915 INFO L478 AbstractCegarLoop]: Abstraction has 4145 states and 6001 transitions. [2022-03-17 19:00:23,915 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:23,915 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6001 transitions. [2022-03-17 19:00:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-17 19:00:23,919 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:23,919 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:23,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 19:00:23,919 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:23,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:23,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1006834184, now seen corresponding path program 1 times [2022-03-17 19:00:23,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:23,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579694460] [2022-03-17 19:00:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:23,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 513 proven. 209 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 19:00:24,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:24,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579694460] [2022-03-17 19:00:24,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579694460] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:24,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179748827] [2022-03-17 19:00:24,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:24,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:24,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:00:24,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:00:24,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 19:00:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:25,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 100 conjunts are in the unsatisfiable core [2022-03-17 19:00:25,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:00:25,801 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:25,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:00:25,907 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 19:00:25,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 19:00:26,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-17 19:00:26,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 19:00:26,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:26,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 19:00:26,101 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 19:00:26,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 19:00:26,110 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:26,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-17 19:00:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:26,750 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 19:00:26,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 19:00:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:26,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:00:26,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:26,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:00:26,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:26,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:00:26,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:26,848 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:00:26,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 19:00:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:26,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 19:00:27,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:27,546 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 19:00:27,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 19:00:27,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:27,580 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 19:00:27,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 19:00:27,622 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-17 19:00:27,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-17 19:00:29,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 295 [2022-03-17 19:00:29,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:29,384 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-17 19:00:29,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 379 treesize of output 392 [2022-03-17 19:00:29,410 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-17 19:00:29,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 335 [2022-03-17 19:00:33,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-03-17 19:00:33,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-03-17 19:00:33,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,523 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:00:33,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-03-17 19:00:33,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-03-17 19:00:33,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:33,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-03-17 19:00:33,767 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-17 19:00:33,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-03-17 19:00:33,830 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 19:00:33,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 19:00:33,954 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:00:33,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 19:00:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 19:00:33,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:00:36,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:36,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:36,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-17 19:00:36,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:36,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:36,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-17 19:00:38,761 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 19:00:38,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179748827] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:00:38,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:00:38,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 14] total 42 [2022-03-17 19:00:38,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305962022] [2022-03-17 19:00:38,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:00:38,762 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-17 19:00:38,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:00:38,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-17 19:00:38,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=1431, Unknown=0, NotChecked=0, Total=1722 [2022-03-17 19:00:38,763 INFO L87 Difference]: Start difference. First operand 4145 states and 6001 transitions. Second operand has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:40,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:00:48,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:00:48,390 INFO L93 Difference]: Finished difference Result 11216 states and 15788 transitions. [2022-03-17 19:00:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-17 19:00:48,390 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-03-17 19:00:48,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:00:48,413 INFO L225 Difference]: With dead ends: 11216 [2022-03-17 19:00:48,413 INFO L226 Difference]: Without dead ends: 11216 [2022-03-17 19:00:48,414 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 689 SyntacticMatches, 6 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4373 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1593, Invalid=11289, Unknown=0, NotChecked=0, Total=12882 [2022-03-17 19:00:48,415 INFO L912 BasicCegarLoop]: 378 mSDtfsCounter, 1928 mSDsluCounter, 5115 mSDsCounter, 0 mSdLazyCounter, 4889 mSolverCounterSat, 190 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 7834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4889 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2754 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:00:48,415 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1928 Valid, 5493 Invalid, 7834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4889 Invalid, 1 Unknown, 2754 Unchecked, 6.0s Time] [2022-03-17 19:00:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2022-03-17 19:00:48,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5433. [2022-03-17 19:00:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5433 states, 5428 states have (on average 1.4823139277818718) internal successors, (8046), 5428 states have internal predecessors, (8046), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5433 states to 5433 states and 8050 transitions. [2022-03-17 19:00:48,468 INFO L78 Accepts]: Start accepts. Automaton has 5433 states and 8050 transitions. Word has length 326 [2022-03-17 19:00:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:00:48,468 INFO L478 AbstractCegarLoop]: Abstraction has 5433 states and 8050 transitions. [2022-03-17 19:00:48,468 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:00:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5433 states and 8050 transitions. [2022-03-17 19:00:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-03-17 19:00:48,473 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:00:48,473 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:00:48,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-17 19:00:48,675 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-03-17 19:00:48,676 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:00:48,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:00:48,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1827435158, now seen corresponding path program 1 times [2022-03-17 19:00:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:00:48,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498671251] [2022-03-17 19:00:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:48,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:00:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:00:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 513 proven. 209 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 19:00:49,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:00:49,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498671251] [2022-03-17 19:00:49,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498671251] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:00:49,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828756742] [2022-03-17 19:00:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:00:49,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:00:49,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:00:49,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:00:49,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 19:00:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:00:50,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-17 19:00:50,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:00:50,465 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:50,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:00:50,549 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 19:00:50,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 19:00:50,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-17 19:00:50,676 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:50,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 19:00:50,688 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:50,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 19:00:50,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:50,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 19:00:50,720 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 19:00:50,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 19:00:50,728 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:00:50,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-03-17 19:00:51,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 19:00:51,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 19:00:51,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,292 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 19:00:51,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 19:00:51,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 19:00:51,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,357 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:00:51,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 19:00:51,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 19:00:51,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,948 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 19:00:51,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 19:00:51,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:51,990 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 19:00:51,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 19:00:52,031 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-17 19:00:52,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-17 19:00:52,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 357 treesize of output 279 [2022-03-17 19:00:52,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:52,945 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-17 19:00:52,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 357 treesize of output 376 [2022-03-17 19:00:52,973 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-17 19:00:52,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 385 treesize of output 313 [2022-03-17 19:00:56,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,588 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 19:00:56,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 352 treesize of output 346 [2022-03-17 19:00:56,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 289 [2022-03-17 19:00:56,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 277 [2022-03-17 19:00:56,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 114 [2022-03-17 19:00:56,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:00:56,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 72 [2022-03-17 19:00:56,845 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-17 19:00:56,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 92 [2022-03-17 19:00:56,900 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 19:00:56,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 19:00:57,020 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:00:57,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 19:00:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 19:00:57,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:00:59,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:59,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:59,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-17 19:00:59,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:59,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:00:59,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-17 19:01:10,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:01:10,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:01:10,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-03-17 19:01:10,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:01:10,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:01:10,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 19:01:10,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-03-17 19:01:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 19:01:11,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828756742] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 19:01:11,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 19:01:11,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 15] total 41 [2022-03-17 19:01:11,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398050288] [2022-03-17 19:01:11,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 19:01:11,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-17 19:01:11,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:11,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-17 19:01:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1353, Unknown=3, NotChecked=0, Total=1640 [2022-03-17 19:01:11,098 INFO L87 Difference]: Start difference. First operand 5433 states and 8050 transitions. Second operand has 41 states, 41 states have (on average 12.21951219512195) internal successors, (501), 40 states have internal predecessors, (501), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:13,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:15,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:17,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:19,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:22,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:23,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:25,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:27,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:30,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:43,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:43,011 INFO L93 Difference]: Finished difference Result 14906 states and 21243 transitions. [2022-03-17 19:01:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-03-17 19:01:43,011 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 12.21951219512195) internal successors, (501), 40 states have internal predecessors, (501), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 327 [2022-03-17 19:01:43,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:43,024 INFO L225 Difference]: With dead ends: 14906 [2022-03-17 19:01:43,024 INFO L226 Difference]: Without dead ends: 14906 [2022-03-17 19:01:43,025 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 716 SyntacticMatches, 6 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5907 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=2519, Invalid=15034, Unknown=3, NotChecked=0, Total=17556 [2022-03-17 19:01:43,025 INFO L912 BasicCegarLoop]: 650 mSDtfsCounter, 2895 mSDsluCounter, 8077 mSDsCounter, 0 mSdLazyCounter, 9804 mSolverCounterSat, 494 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 8727 SdHoareTripleChecker+Invalid, 13125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 9804 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 2821 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:43,025 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2895 Valid, 8727 Invalid, 13125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 9804 Invalid, 6 Unknown, 2821 Unchecked, 27.8s Time] [2022-03-17 19:01:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14906 states. [2022-03-17 19:01:43,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14906 to 5051. [2022-03-17 19:01:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 5046 states have (on average 1.4476813317479191) internal successors, (7305), 5046 states have internal predecessors, (7305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:43,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 7309 transitions. [2022-03-17 19:01:43,091 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 7309 transitions. Word has length 327 [2022-03-17 19:01:43,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:43,091 INFO L478 AbstractCegarLoop]: Abstraction has 5051 states and 7309 transitions. [2022-03-17 19:01:43,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 12.21951219512195) internal successors, (501), 40 states have internal predecessors, (501), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:43,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 7309 transitions. [2022-03-17 19:01:43,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-03-17 19:01:43,096 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:43,096 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:43,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 19:01:43,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:01:43,299 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:43,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:43,299 INFO L85 PathProgramCache]: Analyzing trace with hash 672096791, now seen corresponding path program 1 times [2022-03-17 19:01:43,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:43,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541900959] [2022-03-17 19:01:43,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:43,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-17 19:01:43,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:43,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541900959] [2022-03-17 19:01:43,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541900959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:43,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:43,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:43,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005004746] [2022-03-17 19:01:43,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:43,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:43,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:43,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:43,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:43,484 INFO L87 Difference]: Start difference. First operand 5051 states and 7309 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:45,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:45,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:45,799 INFO L93 Difference]: Finished difference Result 5221 states and 7523 transitions. [2022-03-17 19:01:45,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:45,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 336 [2022-03-17 19:01:45,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:45,803 INFO L225 Difference]: With dead ends: 5221 [2022-03-17 19:01:45,804 INFO L226 Difference]: Without dead ends: 5221 [2022-03-17 19:01:45,804 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:45,804 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 15 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:45,804 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 549 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 19:01:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-03-17 19:01:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5184. [2022-03-17 19:01:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 5179 states have (on average 1.4429426530218188) internal successors, (7473), 5179 states have internal predecessors, (7473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:45,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7477 transitions. [2022-03-17 19:01:45,839 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7477 transitions. Word has length 336 [2022-03-17 19:01:45,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:45,839 INFO L478 AbstractCegarLoop]: Abstraction has 5184 states and 7477 transitions. [2022-03-17 19:01:45,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:45,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7477 transitions. [2022-03-17 19:01:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-03-17 19:01:45,844 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:45,844 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:45,844 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-17 19:01:45,844 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:45,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:45,844 INFO L85 PathProgramCache]: Analyzing trace with hash 311769257, now seen corresponding path program 1 times [2022-03-17 19:01:45,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:45,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633948451] [2022-03-17 19:01:45,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:45,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-17 19:01:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:45,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633948451] [2022-03-17 19:01:45,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633948451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:45,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:45,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:45,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299715490] [2022-03-17 19:01:45,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:45,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:45,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:45,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:45,981 INFO L87 Difference]: Start difference. First operand 5184 states and 7477 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:47,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:49,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:51,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:52,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:01:52,196 INFO L93 Difference]: Finished difference Result 5221 states and 7516 transitions. [2022-03-17 19:01:52,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:01:52,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 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 337 [2022-03-17 19:01:52,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:01:52,201 INFO L225 Difference]: With dead ends: 5221 [2022-03-17 19:01:52,201 INFO L226 Difference]: Without dead ends: 5221 [2022-03-17 19:01:52,201 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:01:52,201 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 13 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 19:01:52,201 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 547 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 19:01:52,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-03-17 19:01:52,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5191. [2022-03-17 19:01:52,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5186 states have (on average 1.4423447743925955) internal successors, (7480), 5186 states have internal predecessors, (7480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 7484 transitions. [2022-03-17 19:01:52,254 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 7484 transitions. Word has length 337 [2022-03-17 19:01:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:01:52,255 INFO L478 AbstractCegarLoop]: Abstraction has 5191 states and 7484 transitions. [2022-03-17 19:01:52,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 7484 transitions. [2022-03-17 19:01:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-17 19:01:52,259 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:01:52,259 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:01:52,259 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-17 19:01:52,260 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:01:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:01:52,260 INFO L85 PathProgramCache]: Analyzing trace with hash 942915248, now seen corresponding path program 1 times [2022-03-17 19:01:52,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:01:52,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677252368] [2022-03-17 19:01:52,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:01:52,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:01:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:01:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:01:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-17 19:01:52,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:01:52,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677252368] [2022-03-17 19:01:52,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677252368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:01:52,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:01:52,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 19:01:52,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697271820] [2022-03-17 19:01:52,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:01:52,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 19:01:52,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:01:52,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 19:01:52,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 19:01:52,433 INFO L87 Difference]: Start difference. First operand 5191 states and 7484 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:01:54,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:56,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:01:58,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:00,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:00,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:00,776 INFO L93 Difference]: Finished difference Result 5198 states and 7484 transitions. [2022-03-17 19:02:00,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 19:02:00,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 338 [2022-03-17 19:02:00,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:00,780 INFO L225 Difference]: With dead ends: 5198 [2022-03-17 19:02:00,781 INFO L226 Difference]: Without dead ends: 5030 [2022-03-17 19:02:00,781 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 19:02:00,781 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 10 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:00,781 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 541 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-17 19:02:00,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-03-17 19:02:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 4976. [2022-03-17 19:02:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 4971 states have (on average 1.4431703882518607) internal successors, (7174), 4971 states have internal predecessors, (7174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 7178 transitions. [2022-03-17 19:02:00,812 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 7178 transitions. Word has length 338 [2022-03-17 19:02:00,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:00,812 INFO L478 AbstractCegarLoop]: Abstraction has 4976 states and 7178 transitions. [2022-03-17 19:02:00,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 7178 transitions. [2022-03-17 19:02:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-17 19:02:00,818 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:00,818 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:00,818 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-17 19:02:00,818 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:00,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:00,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1034008123, now seen corresponding path program 1 times [2022-03-17 19:02:00,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:00,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877772701] [2022-03-17 19:02:00,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:00,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:00,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 677 proven. 17 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-17 19:02:00,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:00,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877772701] [2022-03-17 19:02:00,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877772701] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:02:00,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689196484] [2022-03-17 19:02:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:00,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:02:00,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:02:00,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:02:00,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 19:02:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:02,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 19:02:02,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:02:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-03-17 19:02:02,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 19:02:02,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689196484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:02,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 19:02:02,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-17 19:02:02,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218506351] [2022-03-17 19:02:02,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:02,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 19:02:02,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:02,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 19:02:02,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:02:02,501 INFO L87 Difference]: Start difference. First operand 4976 states and 7178 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:02,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:02,536 INFO L93 Difference]: Finished difference Result 6478 states and 9357 transitions. [2022-03-17 19:02:02,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 19:02:02,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 338 [2022-03-17 19:02:02,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:02,542 INFO L225 Difference]: With dead ends: 6478 [2022-03-17 19:02:02,542 INFO L226 Difference]: Without dead ends: 6475 [2022-03-17 19:02:02,542 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-17 19:02:02,542 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 139 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:02,542 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 374 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-17 19:02:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6475 states. [2022-03-17 19:02:02,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 6432. [2022-03-17 19:02:02,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6432 states, 6427 states have (on average 1.4446864789170686) internal successors, (9285), 6427 states have internal predecessors, (9285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6432 states to 6432 states and 9289 transitions. [2022-03-17 19:02:02,605 INFO L78 Accepts]: Start accepts. Automaton has 6432 states and 9289 transitions. Word has length 338 [2022-03-17 19:02:02,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:02,605 INFO L478 AbstractCegarLoop]: Abstraction has 6432 states and 9289 transitions. [2022-03-17 19:02:02,605 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:02,605 INFO L276 IsEmpty]: Start isEmpty. Operand 6432 states and 9289 transitions. [2022-03-17 19:02:02,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-17 19:02:02,610 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:02,610 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:02,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 19:02:02,815 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:02:02,815 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:02,816 INFO L85 PathProgramCache]: Analyzing trace with hash -488272360, now seen corresponding path program 1 times [2022-03-17 19:02:02,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:02,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027559781] [2022-03-17 19:02:02,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:02,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-03-17 19:02:02,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:02,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027559781] [2022-03-17 19:02:02,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027559781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 19:02:02,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 19:02:02,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 19:02:02,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503499780] [2022-03-17 19:02:02,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:02,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:02:02,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:02,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:02:02,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:02:02,972 INFO L87 Difference]: Start difference. First operand 6432 states and 9289 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:04,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:06,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:07,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:07,747 INFO L93 Difference]: Finished difference Result 7934 states and 11472 transitions. [2022-03-17 19:02:07,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:02:07,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 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 338 [2022-03-17 19:02:07,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:07,755 INFO L225 Difference]: With dead ends: 7934 [2022-03-17 19:02:07,755 INFO L226 Difference]: Without dead ends: 7931 [2022-03-17 19:02:07,755 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 19:02:07,755 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:07,755 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 370 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 231 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 19:02:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2022-03-17 19:02:07,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7888. [2022-03-17 19:02:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 7883 states have (on average 1.4461499429151339) internal successors, (11400), 7883 states have internal predecessors, (11400), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 11404 transitions. [2022-03-17 19:02:07,814 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 11404 transitions. Word has length 338 [2022-03-17 19:02:07,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:07,814 INFO L478 AbstractCegarLoop]: Abstraction has 7888 states and 11404 transitions. [2022-03-17 19:02:07,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:07,814 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 11404 transitions. [2022-03-17 19:02:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-17 19:02:07,821 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:07,821 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:07,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-17 19:02:07,821 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:07,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:07,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1114110442, now seen corresponding path program 1 times [2022-03-17 19:02:07,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:07,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684148304] [2022-03-17 19:02:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:07,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:07,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 645 proven. 50 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-03-17 19:02:07,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:07,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684148304] [2022-03-17 19:02:07,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684148304] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:02:07,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422307640] [2022-03-17 19:02:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:07,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:02:07,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:02:08,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:02:08,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 19:02:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:09,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-17 19:02:09,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:02:09,167 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:02:09,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:02:09,200 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:02:09,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:02:09,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:02:09,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:02:09,378 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:02:09,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 19:02:09,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:02:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 640 proven. 130 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-03-17 19:02:09,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:02:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 645 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-03-17 19:02:09,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422307640] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:02:09,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:02:09,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-17 19:02:09,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305394034] [2022-03-17 19:02:09,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:09,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:02:09,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:09,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:02:09,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 19:02:09,890 INFO L87 Difference]: Start difference. First operand 7888 states and 11404 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:11,136 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 [] [2022-03-17 19:02:11,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:11,396 INFO L93 Difference]: Finished difference Result 8493 states and 12068 transitions. [2022-03-17 19:02:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:02:11,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 348 [2022-03-17 19:02:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:11,406 INFO L225 Difference]: With dead ends: 8493 [2022-03-17 19:02:11,406 INFO L226 Difference]: Without dead ends: 8493 [2022-03-17 19:02:11,406 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 19:02:11,407 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 124 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:11,407 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 398 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 19:02:11,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-03-17 19:02:11,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7888. [2022-03-17 19:02:11,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 7883 states have (on average 1.4278827857414689) internal successors, (11256), 7883 states have internal predecessors, (11256), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 11260 transitions. [2022-03-17 19:02:11,469 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 11260 transitions. Word has length 348 [2022-03-17 19:02:11,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:11,470 INFO L478 AbstractCegarLoop]: Abstraction has 7888 states and 11260 transitions. [2022-03-17 19:02:11,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 11260 transitions. [2022-03-17 19:02:11,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-17 19:02:11,477 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:11,477 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:11,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-17 19:02:11,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:02:11,678 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:11,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:11,678 INFO L85 PathProgramCache]: Analyzing trace with hash 952728042, now seen corresponding path program 1 times [2022-03-17 19:02:11,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:11,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62258204] [2022-03-17 19:02:11,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:11,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:11,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 651 proven. 47 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-03-17 19:02:11,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:11,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62258204] [2022-03-17 19:02:11,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62258204] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:02:11,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662299319] [2022-03-17 19:02:11,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:11,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:02:11,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:02:11,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:02:11,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-17 19:02:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:13,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-17 19:02:13,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:02:13,044 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:02:13,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 19:02:13,084 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 19:02:13,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:02:13,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 19:02:13,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 19:02:13,324 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 19:02:13,324 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 19:02:13,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 19:02:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 646 proven. 127 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-03-17 19:02:13,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 19:02:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-03-17 19:02:13,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662299319] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 19:02:13,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 19:02:13,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-17 19:02:13,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759681336] [2022-03-17 19:02:13,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 19:02:13,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 19:02:13,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 19:02:13,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 19:02:13,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 19:02:13,796 INFO L87 Difference]: Start difference. First operand 7888 states and 11260 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:15,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 19:02:15,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 19:02:15,930 INFO L93 Difference]: Finished difference Result 8493 states and 11913 transitions. [2022-03-17 19:02:15,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 19:02:15,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 349 [2022-03-17 19:02:15,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 19:02:15,938 INFO L225 Difference]: With dead ends: 8493 [2022-03-17 19:02:15,938 INFO L226 Difference]: Without dead ends: 8493 [2022-03-17 19:02:15,939 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 19:02:15,939 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 123 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 19:02:15,939 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 355 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 19:02:15,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-03-17 19:02:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7888. [2022-03-17 19:02:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 7883 states have (on average 1.4082202207281491) internal successors, (11101), 7883 states have internal predecessors, (11101), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:15,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 11105 transitions. [2022-03-17 19:02:15,997 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 11105 transitions. Word has length 349 [2022-03-17 19:02:15,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 19:02:15,997 INFO L478 AbstractCegarLoop]: Abstraction has 7888 states and 11105 transitions. [2022-03-17 19:02:15,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 19:02:15,997 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 11105 transitions. [2022-03-17 19:02:16,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-03-17 19:02:16,004 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 19:02:16,004 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 19:02:16,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-17 19:02:16,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:02:16,205 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 19:02:16,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 19:02:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1081958893, now seen corresponding path program 2 times [2022-03-17 19:02:16,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 19:02:16,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901958031] [2022-03-17 19:02:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 19:02:16,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 19:02:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:17,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 19:02:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 19:02:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 567 proven. 92 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-03-17 19:02:17,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 19:02:17,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901958031] [2022-03-17 19:02:17,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901958031] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 19:02:17,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651340274] [2022-03-17 19:02:17,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-17 19:02:17,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 19:02:17,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 19:02:17,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 19:02:17,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-17 19:02:50,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-17 19:02:50,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-17 19:02:50,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 179 conjunts are in the unsatisfiable core [2022-03-17 19:02:50,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 19:02:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,172 INFO L356 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-03-17 19:02:51,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 14076 treesize of output 12060 [2022-03-17 19:02:51,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 19:02:51,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 19 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5440 treesize of output 866