/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.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:34:18,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:34:18,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:34:19,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:34:19,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:34:19,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:34:19,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:34:19,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:34:19,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:34:19,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:34:19,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:34:19,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:34:19,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:34:19,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:34:19,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:34:19,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:34:19,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:34:19,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:34:19,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:34:19,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:34:19,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:34:19,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:34:19,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:34:19,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:34:19,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:34:19,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:34:19,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:34:19,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:34:19,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:34:19,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:34:19,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:34:19,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:34:19,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:34:19,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:34:19,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:34:19,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:34:19,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:34:19,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:34:19,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:34:19,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:34:19,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:34:19,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:34:19,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:34:19,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:34:19,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:34:19,083 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:34:19,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:34:19,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:34:19,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:34:19,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:34:19,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:34:19,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:34:19,084 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:34:19,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:34:19,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:34:19,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:34:19,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:34:19,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:34:19,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:34:19,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:34:19,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:34:19,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:34:19,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:34:19,085 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:34:19,085 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:34:19,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:34:19,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:34:19,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:34:19,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:34:19,300 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:34:19,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-01-31 16:34:19,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/635c830d4/aa4849d4f8274c6aa69099e20398c3b8/FLAG83dc8e04e [2022-01-31 16:34:19,760 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:34:19,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-01-31 16:34:19,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/635c830d4/aa4849d4f8274c6aa69099e20398c3b8/FLAG83dc8e04e [2022-01-31 16:34:20,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/635c830d4/aa4849d4f8274c6aa69099e20398c3b8 [2022-01-31 16:34:20,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:34:20,088 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:34:20,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:34:20,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:34:20,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:34:20,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eca16c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20, skipping insertion in model container [2022-01-31 16:34:20,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:34:20,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:34:20,423 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.14.i.cil-1.c[76536,76549] [2022-01-31 16:34:20,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:34:20,443 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:34:20,514 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.14.i.cil-1.c[76536,76549] [2022-01-31 16:34:20,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:34:20,526 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:34:20,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20 WrapperNode [2022-01-31 16:34:20,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:34:20,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:34:20,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:34:20,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:34:20,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:34:20,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:34:20,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:34:20,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:34:20,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (1/1) ... [2022-01-31 16:34:20,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:34:20,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:34:20,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 16:34:20,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 16:34:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:34:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:34:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:34:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 16:34:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 16:34:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:34:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:34:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 16:34:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 16:34:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 16:34:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:34:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:34:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 16:34:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:34:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:34:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 16:34:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:34:20,809 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:34:20,810 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:34:21,465 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:34:21,839 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 16:34:21,839 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 16:34:21,856 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:34:21,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:34:21,864 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:34:21,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:34:21 BoogieIcfgContainer [2022-01-31 16:34:21,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:34:21,866 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:34:21,866 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:34:21,867 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:34:21,869 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:34:21" (1/1) ... [2022-01-31 16:34:21,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:34:21 BasicIcfg [2022-01-31 16:34:21,929 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:34:21,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:34:21,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:34:21,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:34:21,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:34:20" (1/4) ... [2022-01-31 16:34:21,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57974dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:34:21, skipping insertion in model container [2022-01-31 16:34:21,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:20" (2/4) ... [2022-01-31 16:34:21,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57974dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:34:21, skipping insertion in model container [2022-01-31 16:34:21,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:34:21" (3/4) ... [2022-01-31 16:34:21,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57974dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:34:21, skipping insertion in model container [2022-01-31 16:34:21,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:34:21" (4/4) ... [2022-01-31 16:34:21,935 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.cJordan [2022-01-31 16:34:21,940 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:34:21,940 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:34:21,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:34:21,986 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:34:21,986 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:34:21,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 16:34:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 16:34:22,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:22,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:22,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:22,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:22,011 INFO L85 PathProgramCache]: Analyzing trace with hash -18257494, now seen corresponding path program 1 times [2022-01-31 16:34:22,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:22,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115488485] [2022-01-31 16:34:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:22,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:22,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:22,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:22,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:22,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115488485] [2022-01-31 16:34:22,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115488485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:22,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:22,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:22,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472442432] [2022-01-31 16:34:22,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:22,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:22,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:22,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:22,517 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 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 9.2) 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) [2022-01-31 16:34:25,987 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 [] [2022-01-31 16:34:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:26,601 INFO L93 Difference]: Finished difference Result 299 states and 501 transitions. [2022-01-31 16:34:26,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:26,603 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 [2022-01-31 16:34:26,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:26,611 INFO L225 Difference]: With dead ends: 299 [2022-01-31 16:34:26,611 INFO L226 Difference]: Without dead ends: 273 [2022-01-31 16:34:26,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:26,614 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 166 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:26,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 499 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 16:34:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-01-31 16:34:26,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 188. [2022-01-31 16:34:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.6174863387978142) internal successors, (296), 183 states have internal predecessors, (296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:26,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 300 transitions. [2022-01-31 16:34:26,656 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 300 transitions. Word has length 50 [2022-01-31 16:34:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:26,656 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 300 transitions. [2022-01-31 16:34:26,656 INFO L471 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) [2022-01-31 16:34:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 300 transitions. [2022-01-31 16:34:26,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-31 16:34:26,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:26,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:26,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:34:26,658 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:26,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:26,659 INFO L85 PathProgramCache]: Analyzing trace with hash 346272675, now seen corresponding path program 1 times [2022-01-31 16:34:26,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:26,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383095666] [2022-01-31 16:34:26,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:26,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:26,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:26,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:26,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383095666] [2022-01-31 16:34:26,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383095666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:26,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:26,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:26,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317524544] [2022-01-31 16:34:26,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:26,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:26,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:26,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:26,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:26,822 INFO L87 Difference]: Start difference. First operand 188 states and 300 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:30,771 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 [] [2022-01-31 16:34:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:31,132 INFO L93 Difference]: Finished difference Result 216 states and 340 transitions. [2022-01-31 16:34:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:31,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-01-31 16:34:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:31,134 INFO L225 Difference]: With dead ends: 216 [2022-01-31 16:34:31,134 INFO L226 Difference]: Without dead ends: 216 [2022-01-31 16:34:31,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:31,135 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 22 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:31,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 517 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:34:31,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-01-31 16:34:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-01-31 16:34:31,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6237113402061856) internal successors, (315), 194 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 319 transitions. [2022-01-31 16:34:31,143 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 319 transitions. Word has length 51 [2022-01-31 16:34:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:31,143 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 319 transitions. [2022-01-31 16:34:31,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 319 transitions. [2022-01-31 16:34:31,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:34:31,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:31,145 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:31,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:34:31,145 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:31,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:31,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1001940347, now seen corresponding path program 1 times [2022-01-31 16:34:31,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:31,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807991606] [2022-01-31 16:34:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:31,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:31,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:31,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807991606] [2022-01-31 16:34:31,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807991606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:31,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:31,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:31,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267144863] [2022-01-31 16:34:31,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:31,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:31,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:31,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:31,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:31,330 INFO L87 Difference]: Start difference. First operand 199 states and 319 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:33,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:35,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:37,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:38,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:38,154 INFO L93 Difference]: Finished difference Result 216 states and 339 transitions. [2022-01-31 16:34:38,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:38,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 16:34:38,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:38,156 INFO L225 Difference]: With dead ends: 216 [2022-01-31 16:34:38,156 INFO L226 Difference]: Without dead ends: 216 [2022-01-31 16:34:38,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:38,157 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 24 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:38,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 519 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 373 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-01-31 16:34:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-01-31 16:34:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-01-31 16:34:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6185567010309279) internal successors, (314), 194 states have internal predecessors, (314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:38,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 318 transitions. [2022-01-31 16:34:38,164 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 318 transitions. Word has length 64 [2022-01-31 16:34:38,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:38,164 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 318 transitions. [2022-01-31 16:34:38,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 318 transitions. [2022-01-31 16:34:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:34:38,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:38,168 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:38,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:34:38,169 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash -853695767, now seen corresponding path program 1 times [2022-01-31 16:34:38,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:38,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023197899] [2022-01-31 16:34:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:38,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:38,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:38,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:38,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023197899] [2022-01-31 16:34:38,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023197899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:38,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:38,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:38,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884447925] [2022-01-31 16:34:38,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:38,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:38,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:38,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:38,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:38,294 INFO L87 Difference]: Start difference. First operand 199 states and 318 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:41,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:42,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:42,868 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-01-31 16:34:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:42,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:34:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:42,869 INFO L225 Difference]: With dead ends: 215 [2022-01-31 16:34:42,869 INFO L226 Difference]: Without dead ends: 215 [2022-01-31 16:34:42,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:42,870 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:42,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 16:34:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-01-31 16:34:42,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2022-01-31 16:34:42,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-01-31 16:34:42,876 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 65 [2022-01-31 16:34:42,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:42,876 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-01-31 16:34:42,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-01-31 16:34:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:34:42,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:42,878 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:42,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:34:42,878 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:42,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:42,878 INFO L85 PathProgramCache]: Analyzing trace with hash 108125897, now seen corresponding path program 1 times [2022-01-31 16:34:42,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:42,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391151733] [2022-01-31 16:34:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:42,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:43,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:43,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391151733] [2022-01-31 16:34:43,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391151733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:43,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:43,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:43,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735086805] [2022-01-31 16:34:43,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:43,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:43,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:43,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:43,015 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:45,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:45,668 INFO L93 Difference]: Finished difference Result 323 states and 510 transitions. [2022-01-31 16:34:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:45,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:34:45,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:45,669 INFO L225 Difference]: With dead ends: 323 [2022-01-31 16:34:45,670 INFO L226 Difference]: Without dead ends: 323 [2022-01-31 16:34:45,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:45,670 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 161 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:45,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 380 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:34:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-01-31 16:34:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 211. [2022-01-31 16:34:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5970873786407767) internal successors, (329), 206 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 333 transitions. [2022-01-31 16:34:45,676 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 333 transitions. Word has length 65 [2022-01-31 16:34:45,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:45,676 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 333 transitions. [2022-01-31 16:34:45,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:45,677 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 333 transitions. [2022-01-31 16:34:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:34:45,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:45,678 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:45,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:34:45,678 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:45,678 INFO L85 PathProgramCache]: Analyzing trace with hash -236581015, now seen corresponding path program 1 times [2022-01-31 16:34:45,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:45,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25542870] [2022-01-31 16:34:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:45,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:45,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:45,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25542870] [2022-01-31 16:34:45,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25542870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:45,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:45,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:45,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866631631] [2022-01-31 16:34:45,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:45,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:45,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:45,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:45,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:45,795 INFO L87 Difference]: Start difference. First operand 211 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:48,769 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 [] [2022-01-31 16:34:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:49,574 INFO L93 Difference]: Finished difference Result 322 states and 506 transitions. [2022-01-31 16:34:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:49,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:34:49,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:49,576 INFO L225 Difference]: With dead ends: 322 [2022-01-31 16:34:49,576 INFO L226 Difference]: Without dead ends: 322 [2022-01-31 16:34:49,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:49,577 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 154 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:49,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:34:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-31 16:34:49,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-01-31 16:34:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5943396226415094) internal successors, (338), 212 states have internal predecessors, (338), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 342 transitions. [2022-01-31 16:34:49,582 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 342 transitions. Word has length 65 [2022-01-31 16:34:49,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:49,582 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 342 transitions. [2022-01-31 16:34:49,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:49,583 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 342 transitions. [2022-01-31 16:34:49,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:34:49,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:49,584 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:49,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:34:49,584 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:49,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1695836809, now seen corresponding path program 1 times [2022-01-31 16:34:49,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:49,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845900243] [2022-01-31 16:34:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:49,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:49,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:49,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:49,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845900243] [2022-01-31 16:34:49,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845900243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:49,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:49,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:49,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153365044] [2022-01-31 16:34:49,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:49,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:49,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:49,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:49,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:49,683 INFO L87 Difference]: Start difference. First operand 217 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:52,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:53,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:53,391 INFO L93 Difference]: Finished difference Result 230 states and 358 transitions. [2022-01-31 16:34:53,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:53,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:34:53,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:53,392 INFO L225 Difference]: With dead ends: 230 [2022-01-31 16:34:53,392 INFO L226 Difference]: Without dead ends: 230 [2022-01-31 16:34:53,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:53,393 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:53,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:34:53,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-31 16:34:53,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-01-31 16:34:53,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5896226415094339) internal successors, (337), 212 states have internal predecessors, (337), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:53,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 341 transitions. [2022-01-31 16:34:53,397 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 341 transitions. Word has length 65 [2022-01-31 16:34:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:53,397 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 341 transitions. [2022-01-31 16:34:53,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:53,398 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 341 transitions. [2022-01-31 16:34:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 16:34:53,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:53,398 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:53,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:34:53,398 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:53,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:53,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1137620101, now seen corresponding path program 1 times [2022-01-31 16:34:53,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:53,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059541308] [2022-01-31 16:34:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:53,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:53,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:53,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059541308] [2022-01-31 16:34:53,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059541308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:53,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:53,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:53,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825160352] [2022-01-31 16:34:53,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:53,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:53,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:53,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:53,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:53,517 INFO L87 Difference]: Start difference. First operand 217 states and 341 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:56,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:57,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:58,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:58,222 INFO L93 Difference]: Finished difference Result 322 states and 502 transitions. [2022-01-31 16:34:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:58,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-01-31 16:34:58,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:58,223 INFO L225 Difference]: With dead ends: 322 [2022-01-31 16:34:58,223 INFO L226 Difference]: Without dead ends: 322 [2022-01-31 16:34:58,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:58,224 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 158 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:58,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-01-31 16:34:58,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-31 16:34:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-01-31 16:34:58,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5754716981132075) internal successors, (334), 212 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:58,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 338 transitions. [2022-01-31 16:34:58,229 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 338 transitions. Word has length 66 [2022-01-31 16:34:58,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:58,229 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 338 transitions. [2022-01-31 16:34:58,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 338 transitions. [2022-01-31 16:34:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:34:58,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:58,230 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:58,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:34:58,230 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1724441147, now seen corresponding path program 1 times [2022-01-31 16:34:58,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:58,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490093188] [2022-01-31 16:34:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:58,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:58,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:58,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490093188] [2022-01-31 16:34:58,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490093188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:58,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:58,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:58,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291001640] [2022-01-31 16:34:58,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:58,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:58,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:58,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:58,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:58,327 INFO L87 Difference]: Start difference. First operand 217 states and 338 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:00,092 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 [] [2022-01-31 16:35:02,404 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 [] [2022-01-31 16:35:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:02,721 INFO L93 Difference]: Finished difference Result 230 states and 354 transitions. [2022-01-31 16:35:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-01-31 16:35:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:02,723 INFO L225 Difference]: With dead ends: 230 [2022-01-31 16:35:02,723 INFO L226 Difference]: Without dead ends: 230 [2022-01-31 16:35:02,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:02,723 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:02,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:35:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-31 16:35:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-01-31 16:35:02,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.570754716981132) internal successors, (333), 212 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 337 transitions. [2022-01-31 16:35:02,727 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 337 transitions. Word has length 67 [2022-01-31 16:35:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:02,727 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 337 transitions. [2022-01-31 16:35:02,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 337 transitions. [2022-01-31 16:35:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 16:35:02,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:02,728 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:02,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:35:02,728 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:02,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1640250846, now seen corresponding path program 1 times [2022-01-31 16:35:02,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:02,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057749223] [2022-01-31 16:35:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:02,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:35:02,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:02,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057749223] [2022-01-31 16:35:02,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057749223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:02,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:02,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:02,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945515966] [2022-01-31 16:35:02,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:02,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:02,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:02,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:02,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:02,809 INFO L87 Difference]: Start difference. First operand 217 states and 337 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:05,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:06,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:06,237 INFO L93 Difference]: Finished difference Result 220 states and 340 transitions. [2022-01-31 16:35:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:06,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-01-31 16:35:06,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:06,238 INFO L225 Difference]: With dead ends: 220 [2022-01-31 16:35:06,238 INFO L226 Difference]: Without dead ends: 220 [2022-01-31 16:35:06,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:06,239 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 11 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:06,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 541 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 16:35:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-01-31 16:35:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-01-31 16:35:06,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5660377358490567) internal successors, (332), 212 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:06,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 336 transitions. [2022-01-31 16:35:06,243 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 336 transitions. Word has length 68 [2022-01-31 16:35:06,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:06,243 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 336 transitions. [2022-01-31 16:35:06,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:06,244 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 336 transitions. [2022-01-31 16:35:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 16:35:06,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:06,244 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:06,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:35:06,245 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:06,245 INFO L85 PathProgramCache]: Analyzing trace with hash 628685139, now seen corresponding path program 1 times [2022-01-31 16:35:06,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:06,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355626823] [2022-01-31 16:35:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:06,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:35:06,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:06,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355626823] [2022-01-31 16:35:06,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355626823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:06,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:06,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:06,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592400366] [2022-01-31 16:35:06,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:06,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:06,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:06,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:06,350 INFO L87 Difference]: Start difference. First operand 217 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:07,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:09,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:12,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:12,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:12,678 INFO L93 Difference]: Finished difference Result 322 states and 499 transitions. [2022-01-31 16:35:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:12,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-01-31 16:35:12,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:12,680 INFO L225 Difference]: With dead ends: 322 [2022-01-31 16:35:12,680 INFO L226 Difference]: Without dead ends: 322 [2022-01-31 16:35:12,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:12,680 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 131 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:12,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-01-31 16:35:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-31 16:35:12,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 239. [2022-01-31 16:35:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.6025641025641026) internal successors, (375), 234 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 379 transitions. [2022-01-31 16:35:12,685 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 379 transitions. Word has length 68 [2022-01-31 16:35:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:12,685 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 379 transitions. [2022-01-31 16:35:12,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 379 transitions. [2022-01-31 16:35:12,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-31 16:35:12,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:12,686 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:12,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:35:12,686 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:12,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:12,687 INFO L85 PathProgramCache]: Analyzing trace with hash -486685090, now seen corresponding path program 1 times [2022-01-31 16:35:12,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:12,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145493058] [2022-01-31 16:35:12,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:12,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-31 16:35:12,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:12,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145493058] [2022-01-31 16:35:12,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145493058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:12,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:12,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:12,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800886241] [2022-01-31 16:35:12,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:12,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:12,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:12,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:12,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:12,770 INFO L87 Difference]: Start difference. First operand 239 states and 379 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:16,575 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 [] [2022-01-31 16:35:16,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:16,903 INFO L93 Difference]: Finished difference Result 281 states and 440 transitions. [2022-01-31 16:35:16,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:16,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-01-31 16:35:16,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:16,904 INFO L225 Difference]: With dead ends: 281 [2022-01-31 16:35:16,904 INFO L226 Difference]: Without dead ends: 281 [2022-01-31 16:35:16,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:16,905 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:16,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:35:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-01-31 16:35:16,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2022-01-31 16:35:16,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-01-31 16:35:16,909 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 96 [2022-01-31 16:35:16,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:16,909 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-01-31 16:35:16,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:16,909 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-01-31 16:35:16,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-31 16:35:16,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:16,910 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:16,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:35:16,910 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:16,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:16,911 INFO L85 PathProgramCache]: Analyzing trace with hash 818702560, now seen corresponding path program 1 times [2022-01-31 16:35:16,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:16,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715237720] [2022-01-31 16:35:16,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:16,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:17,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:35:17,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:17,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715237720] [2022-01-31 16:35:17,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715237720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:17,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:17,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:17,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69421740] [2022-01-31 16:35:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:17,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:17,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:17,026 INFO L87 Difference]: Start difference. First operand 261 states and 414 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) [2022-01-31 16:35:19,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:19,914 INFO L93 Difference]: Finished difference Result 384 states and 601 transitions. [2022-01-31 16:35:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:19,915 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 [2022-01-31 16:35:19,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:19,916 INFO L225 Difference]: With dead ends: 384 [2022-01-31 16:35:19,916 INFO L226 Difference]: Without dead ends: 384 [2022-01-31 16:35:19,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:19,917 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 154 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:19,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 640 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:35:19,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-01-31 16:35:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 277. [2022-01-31 16:35:19,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.588235294117647) internal successors, (432), 272 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:19,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 436 transitions. [2022-01-31 16:35:19,921 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 436 transitions. Word has length 109 [2022-01-31 16:35:19,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:19,922 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 436 transitions. [2022-01-31 16:35:19,922 INFO L471 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) [2022-01-31 16:35:19,922 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 436 transitions. [2022-01-31 16:35:19,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 16:35:19,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:19,922 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:19,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:35:19,923 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:19,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:19,923 INFO L85 PathProgramCache]: Analyzing trace with hash -709493596, now seen corresponding path program 1 times [2022-01-31 16:35:19,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:19,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100510087] [2022-01-31 16:35:19,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:19,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-31 16:35:20,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:20,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100510087] [2022-01-31 16:35:20,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100510087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:20,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:20,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:20,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741408245] [2022-01-31 16:35:20,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:20,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:20,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:20,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:20,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:20,039 INFO L87 Difference]: Start difference. First operand 277 states and 436 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:22,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:24,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:24,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:24,801 INFO L93 Difference]: Finished difference Result 290 states and 451 transitions. [2022-01-31 16:35:24,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:24,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-01-31 16:35:24,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:24,803 INFO L225 Difference]: With dead ends: 290 [2022-01-31 16:35:24,803 INFO L226 Difference]: Without dead ends: 290 [2022-01-31 16:35:24,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:24,803 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 20 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:24,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 610 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 411 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-01-31 16:35:24,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-01-31 16:35:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2022-01-31 16:35:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5845588235294117) internal successors, (431), 272 states have internal predecessors, (431), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 435 transitions. [2022-01-31 16:35:24,808 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 435 transitions. Word has length 110 [2022-01-31 16:35:24,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:24,808 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 435 transitions. [2022-01-31 16:35:24,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:24,808 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 435 transitions. [2022-01-31 16:35:24,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 16:35:24,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:24,809 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:24,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:35:24,809 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1832588356, now seen corresponding path program 1 times [2022-01-31 16:35:24,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:24,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901155744] [2022-01-31 16:35:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:24,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:24,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:24,900 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:35:24,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:24,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901155744] [2022-01-31 16:35:24,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901155744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:24,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:24,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:24,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374301266] [2022-01-31 16:35:24,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:24,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:24,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:24,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:24,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:24,901 INFO L87 Difference]: Start difference. First operand 277 states and 435 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:26,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:27,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:29,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:31,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:31,073 INFO L93 Difference]: Finished difference Result 360 states and 552 transitions. [2022-01-31 16:35:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:31,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-01-31 16:35:31,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:31,075 INFO L225 Difference]: With dead ends: 360 [2022-01-31 16:35:31,075 INFO L226 Difference]: Without dead ends: 360 [2022-01-31 16:35:31,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:31,075 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 153 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:31,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:35:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-01-31 16:35:31,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 277. [2022-01-31 16:35:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5735294117647058) internal successors, (428), 272 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:31,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 432 transitions. [2022-01-31 16:35:31,080 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 432 transitions. Word has length 110 [2022-01-31 16:35:31,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:31,080 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 432 transitions. [2022-01-31 16:35:31,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 432 transitions. [2022-01-31 16:35:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-31 16:35:31,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:31,081 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:31,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:35:31,081 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash -570233019, now seen corresponding path program 1 times [2022-01-31 16:35:31,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:31,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009630283] [2022-01-31 16:35:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:31,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-31 16:35:31,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:31,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009630283] [2022-01-31 16:35:31,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009630283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:31,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:31,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:35:31,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974881730] [2022-01-31 16:35:31,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:31,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:35:31,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:31,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:35:31,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:31,200 INFO L87 Difference]: Start difference. First operand 277 states and 432 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:33,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:35,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:36,779 INFO L93 Difference]: Finished difference Result 286 states and 443 transitions. [2022-01-31 16:35:36,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:35:36,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-01-31 16:35:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:36,780 INFO L225 Difference]: With dead ends: 286 [2022-01-31 16:35:36,780 INFO L226 Difference]: Without dead ends: 286 [2022-01-31 16:35:36,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:35:36,781 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:36,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-01-31 16:35:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-01-31 16:35:36,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-01-31 16:35:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5622775800711743) internal successors, (439), 281 states have internal predecessors, (439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 443 transitions. [2022-01-31 16:35:36,785 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 443 transitions. Word has length 111 [2022-01-31 16:35:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:36,785 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 443 transitions. [2022-01-31 16:35:36,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 443 transitions. [2022-01-31 16:35:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-31 16:35:36,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:36,786 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:36,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:35:36,786 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:36,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1550147049, now seen corresponding path program 1 times [2022-01-31 16:35:36,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:36,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133507431] [2022-01-31 16:35:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:36,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:35:36,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:36,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133507431] [2022-01-31 16:35:36,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133507431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:36,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:36,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:36,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669501629] [2022-01-31 16:35:36,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:36,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:36,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:36,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:36,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:36,908 INFO L87 Difference]: Start difference. First operand 286 states and 443 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:39,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:40,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:41,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:41,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:41,965 INFO L93 Difference]: Finished difference Result 313 states and 477 transitions. [2022-01-31 16:35:41,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:41,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-01-31 16:35:41,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:41,966 INFO L225 Difference]: With dead ends: 313 [2022-01-31 16:35:41,966 INFO L226 Difference]: Without dead ends: 313 [2022-01-31 16:35:41,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:41,967 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 36 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:41,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 16:35:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-01-31 16:35:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-01-31 16:35:41,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5587188612099645) internal successors, (438), 281 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 442 transitions. [2022-01-31 16:35:41,971 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 442 transitions. Word has length 113 [2022-01-31 16:35:41,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:41,972 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 442 transitions. [2022-01-31 16:35:41,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 442 transitions. [2022-01-31 16:35:41,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-31 16:35:41,972 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:41,973 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:41,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:35:41,973 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:41,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:41,973 INFO L85 PathProgramCache]: Analyzing trace with hash 373566476, now seen corresponding path program 1 times [2022-01-31 16:35:41,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:41,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152268662] [2022-01-31 16:35:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:41,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:35:42,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:42,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152268662] [2022-01-31 16:35:42,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152268662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:42,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:42,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:42,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596592071] [2022-01-31 16:35:42,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:42,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:42,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:42,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:42,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:42,063 INFO L87 Difference]: Start difference. First operand 286 states and 442 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:44,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:45,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:45,797 INFO L93 Difference]: Finished difference Result 378 states and 569 transitions. [2022-01-31 16:35:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-01-31 16:35:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:45,798 INFO L225 Difference]: With dead ends: 378 [2022-01-31 16:35:45,798 INFO L226 Difference]: Without dead ends: 378 [2022-01-31 16:35:45,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:45,799 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 154 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:45,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:35:45,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-01-31 16:35:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2022-01-31 16:35:45,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5444839857651245) internal successors, (434), 281 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 438 transitions. [2022-01-31 16:35:45,803 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 438 transitions. Word has length 114 [2022-01-31 16:35:45,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:45,803 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 438 transitions. [2022-01-31 16:35:45,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 438 transitions. [2022-01-31 16:35:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-31 16:35:45,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:45,804 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:45,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:35:45,805 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1630354749, now seen corresponding path program 1 times [2022-01-31 16:35:45,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:45,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253558752] [2022-01-31 16:35:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:45,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:45,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:35:45,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:45,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253558752] [2022-01-31 16:35:45,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253558752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:45,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:45,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:45,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033528669] [2022-01-31 16:35:45,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:45,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:45,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:45,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:45,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:45,931 INFO L87 Difference]: Start difference. First operand 286 states and 438 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:48,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:48,727 INFO L93 Difference]: Finished difference Result 454 states and 697 transitions. [2022-01-31 16:35:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:48,728 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 118 [2022-01-31 16:35:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:48,729 INFO L225 Difference]: With dead ends: 454 [2022-01-31 16:35:48,729 INFO L226 Difference]: Without dead ends: 454 [2022-01-31 16:35:48,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:48,730 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 135 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:48,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 416 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 16:35:48,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-01-31 16:35:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 350. [2022-01-31 16:35:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5594202898550724) internal successors, (538), 345 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 542 transitions. [2022-01-31 16:35:48,734 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 542 transitions. Word has length 118 [2022-01-31 16:35:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:48,735 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 542 transitions. [2022-01-31 16:35:48,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 542 transitions. [2022-01-31 16:35:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 16:35:48,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:48,736 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:48,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:35:48,736 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:48,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:48,736 INFO L85 PathProgramCache]: Analyzing trace with hash -197061542, now seen corresponding path program 1 times [2022-01-31 16:35:48,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:48,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541237138] [2022-01-31 16:35:48,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:48,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:48,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-31 16:35:48,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:48,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541237138] [2022-01-31 16:35:48,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541237138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:48,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:48,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:48,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109189165] [2022-01-31 16:35:48,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:48,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:48,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:48,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:48,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:48,821 INFO L87 Difference]: Start difference. First operand 350 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:50,777 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 [] [2022-01-31 16:35:52,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:52,461 INFO L93 Difference]: Finished difference Result 357 states and 551 transitions. [2022-01-31 16:35:52,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:52,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-01-31 16:35:52,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:52,463 INFO L225 Difference]: With dead ends: 357 [2022-01-31 16:35:52,463 INFO L226 Difference]: Without dead ends: 357 [2022-01-31 16:35:52,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:52,463 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:52,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 561 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:35:52,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-01-31 16:35:52,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 350. [2022-01-31 16:35:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5565217391304347) internal successors, (537), 345 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 541 transitions. [2022-01-31 16:35:52,467 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 541 transitions. Word has length 123 [2022-01-31 16:35:52,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:52,468 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 541 transitions. [2022-01-31 16:35:52,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 541 transitions. [2022-01-31 16:35:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 16:35:52,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:52,469 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:52,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:35:52,469 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:52,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash -337214073, now seen corresponding path program 1 times [2022-01-31 16:35:52,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:52,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631928567] [2022-01-31 16:35:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:52,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:52,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:52,575 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:35:52,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:52,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631928567] [2022-01-31 16:35:52,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631928567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:52,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:52,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:52,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126656188] [2022-01-31 16:35:52,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:52,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:52,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:52,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:52,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:52,576 INFO L87 Difference]: Start difference. First operand 350 states and 541 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) [2022-01-31 16:35:54,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:56,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:56,701 INFO L93 Difference]: Finished difference Result 482 states and 736 transitions. [2022-01-31 16:35:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:56,701 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 124 [2022-01-31 16:35:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:56,703 INFO L225 Difference]: With dead ends: 482 [2022-01-31 16:35:56,703 INFO L226 Difference]: Without dead ends: 482 [2022-01-31 16:35:56,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:56,704 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 131 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:56,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 380 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:35:56,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-01-31 16:35:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 387. [2022-01-31 16:35:56,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5628272251308901) internal successors, (597), 382 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:56,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 601 transitions. [2022-01-31 16:35:56,708 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 601 transitions. Word has length 124 [2022-01-31 16:35:56,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:56,709 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 601 transitions. [2022-01-31 16:35:56,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 601 transitions. [2022-01-31 16:35:56,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-31 16:35:56,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:56,710 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:56,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:35:56,710 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:56,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:56,710 INFO L85 PathProgramCache]: Analyzing trace with hash 492972657, now seen corresponding path program 1 times [2022-01-31 16:35:56,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:56,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604288250] [2022-01-31 16:35:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:56,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:35:56,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:56,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604288250] [2022-01-31 16:35:56,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604288250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:56,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:56,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:56,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008514901] [2022-01-31 16:35:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:56,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:56,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:56,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:56,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:56,821 INFO L87 Difference]: Start difference. First operand 387 states and 601 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:59,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:59,456 INFO L93 Difference]: Finished difference Result 491 states and 754 transitions. [2022-01-31 16:35:59,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:59,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-01-31 16:35:59,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:59,460 INFO L225 Difference]: With dead ends: 491 [2022-01-31 16:35:59,460 INFO L226 Difference]: Without dead ends: 491 [2022-01-31 16:35:59,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:59,460 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 83 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:59,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 511 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:35:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-01-31 16:35:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 427. [2022-01-31 16:35:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.566350710900474) internal successors, (661), 422 states have internal predecessors, (661), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 665 transitions. [2022-01-31 16:35:59,465 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 665 transitions. Word has length 125 [2022-01-31 16:35:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:59,466 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 665 transitions. [2022-01-31 16:35:59,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 665 transitions. [2022-01-31 16:35:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-31 16:35:59,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:59,467 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:59,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:35:59,467 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:59,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash 506505458, now seen corresponding path program 1 times [2022-01-31 16:35:59,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:59,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600720974] [2022-01-31 16:35:59,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:59,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:59,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-31 16:35:59,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:59,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600720974] [2022-01-31 16:35:59,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600720974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:59,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:59,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:59,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795050393] [2022-01-31 16:35:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:59,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:59,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:59,595 INFO L87 Difference]: Start difference. First operand 427 states and 665 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:02,723 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 [] [2022-01-31 16:36:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:03,097 INFO L93 Difference]: Finished difference Result 483 states and 743 transitions. [2022-01-31 16:36:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:03,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-01-31 16:36:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:03,099 INFO L225 Difference]: With dead ends: 483 [2022-01-31 16:36:03,099 INFO L226 Difference]: Without dead ends: 483 [2022-01-31 16:36:03,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:03,099 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 36 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:03,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 639 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:36:03,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-01-31 16:36:03,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 451. [2022-01-31 16:36:03,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.562780269058296) internal successors, (697), 446 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:03,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 701 transitions. [2022-01-31 16:36:03,104 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 701 transitions. Word has length 125 [2022-01-31 16:36:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:03,105 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 701 transitions. [2022-01-31 16:36:03,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:03,105 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 701 transitions. [2022-01-31 16:36:03,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-31 16:36:03,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:03,106 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:03,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:36:03,106 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:03,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:03,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2113567405, now seen corresponding path program 1 times [2022-01-31 16:36:03,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:03,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580091735] [2022-01-31 16:36:03,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:03,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:03,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:36:03,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:03,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580091735] [2022-01-31 16:36:03,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580091735] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:03,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:03,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:03,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215381944] [2022-01-31 16:36:03,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:03,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:03,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:03,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:03,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:03,193 INFO L87 Difference]: Start difference. First operand 451 states and 701 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) [2022-01-31 16:36:05,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:05,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:05,622 INFO L93 Difference]: Finished difference Result 508 states and 778 transitions. [2022-01-31 16:36:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:05,622 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 [2022-01-31 16:36:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:05,624 INFO L225 Difference]: With dead ends: 508 [2022-01-31 16:36:05,624 INFO L226 Difference]: Without dead ends: 508 [2022-01-31 16:36:05,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:05,624 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 69 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:05,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 517 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:36:05,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-01-31 16:36:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454. [2022-01-31 16:36:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.55902004454343) internal successors, (700), 449 states have internal predecessors, (700), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:05,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 704 transitions. [2022-01-31 16:36:05,630 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 704 transitions. Word has length 132 [2022-01-31 16:36:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:05,630 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 704 transitions. [2022-01-31 16:36:05,630 INFO L471 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) [2022-01-31 16:36:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 704 transitions. [2022-01-31 16:36:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-31 16:36:05,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:05,631 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:05,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:36:05,631 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:05,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:05,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1898923484, now seen corresponding path program 1 times [2022-01-31 16:36:05,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:05,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811760070] [2022-01-31 16:36:05,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:05,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:05,746 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-01-31 16:36:05,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:05,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811760070] [2022-01-31 16:36:05,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811760070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:05,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:05,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:05,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055438489] [2022-01-31 16:36:05,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:05,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:05,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:05,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:05,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:05,747 INFO L87 Difference]: Start difference. First operand 454 states and 704 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:06,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:08,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:09,360 INFO L93 Difference]: Finished difference Result 536 states and 814 transitions. [2022-01-31 16:36:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:09,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-01-31 16:36:09,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:09,362 INFO L225 Difference]: With dead ends: 536 [2022-01-31 16:36:09,362 INFO L226 Difference]: Without dead ends: 536 [2022-01-31 16:36:09,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:09,363 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 153 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:09,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:36:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-01-31 16:36:09,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 454. [2022-01-31 16:36:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5412026726057906) internal successors, (692), 449 states have internal predecessors, (692), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 696 transitions. [2022-01-31 16:36:09,368 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 696 transitions. Word has length 142 [2022-01-31 16:36:09,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:09,368 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 696 transitions. [2022-01-31 16:36:09,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 696 transitions. [2022-01-31 16:36:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 16:36:09,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:09,369 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:09,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:36:09,369 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:09,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash 808274459, now seen corresponding path program 1 times [2022-01-31 16:36:09,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:09,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282492132] [2022-01-31 16:36:09,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:09,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:09,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:36:09,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:09,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282492132] [2022-01-31 16:36:09,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282492132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:09,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:09,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:09,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264801903] [2022-01-31 16:36:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:09,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:09,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:09,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:09,465 INFO L87 Difference]: Start difference. First operand 454 states and 696 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) [2022-01-31 16:36:10,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:12,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:14,677 INFO L93 Difference]: Finished difference Result 488 states and 744 transitions. [2022-01-31 16:36:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:14,678 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 [2022-01-31 16:36:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:14,679 INFO L225 Difference]: With dead ends: 488 [2022-01-31 16:36:14,679 INFO L226 Difference]: Without dead ends: 488 [2022-01-31 16:36:14,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:14,679 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 90 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:14,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 533 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:36:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-01-31 16:36:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 454. [2022-01-31 16:36:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5389755011135857) internal successors, (691), 449 states have internal predecessors, (691), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 695 transitions. [2022-01-31 16:36:14,685 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 695 transitions. Word has length 145 [2022-01-31 16:36:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:14,685 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 695 transitions. [2022-01-31 16:36:14,685 INFO L471 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) [2022-01-31 16:36:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 695 transitions. [2022-01-31 16:36:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 16:36:14,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:14,686 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:14,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:36:14,687 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:14,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:14,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1595144559, now seen corresponding path program 1 times [2022-01-31 16:36:14,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:14,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491493022] [2022-01-31 16:36:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:14,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:14,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:36:14,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:14,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491493022] [2022-01-31 16:36:14,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491493022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:14,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:14,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:14,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227376163] [2022-01-31 16:36:14,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:14,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:14,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:14,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:14,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:14,777 INFO L87 Difference]: Start difference. First operand 454 states and 695 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:18,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:19,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:19,044 INFO L93 Difference]: Finished difference Result 576 states and 871 transitions. [2022-01-31 16:36:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:19,044 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 [2022-01-31 16:36:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:19,046 INFO L225 Difference]: With dead ends: 576 [2022-01-31 16:36:19,046 INFO L226 Difference]: Without dead ends: 576 [2022-01-31 16:36:19,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:19,046 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 136 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:19,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 406 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:36:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-01-31 16:36:19,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 484. [2022-01-31 16:36:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5302713987473904) internal successors, (733), 479 states have internal predecessors, (733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:19,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 737 transitions. [2022-01-31 16:36:19,053 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 737 transitions. Word has length 145 [2022-01-31 16:36:19,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:19,053 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 737 transitions. [2022-01-31 16:36:19,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 737 transitions. [2022-01-31 16:36:19,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 16:36:19,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:19,054 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:19,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:36:19,054 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:19,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:19,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1608810012, now seen corresponding path program 1 times [2022-01-31 16:36:19,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:19,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681720686] [2022-01-31 16:36:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:19,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:19,158 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:36:19,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:19,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681720686] [2022-01-31 16:36:19,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681720686] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:19,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:19,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:19,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832836284] [2022-01-31 16:36:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:19,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:19,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:19,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:19,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:19,160 INFO L87 Difference]: Start difference. First operand 484 states and 737 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) [2022-01-31 16:36:20,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:22,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:22,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:22,778 INFO L93 Difference]: Finished difference Result 496 states and 753 transitions. [2022-01-31 16:36:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:22,778 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 [2022-01-31 16:36:22,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:22,780 INFO L225 Difference]: With dead ends: 496 [2022-01-31 16:36:22,780 INFO L226 Difference]: Without dead ends: 496 [2022-01-31 16:36:22,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:22,780 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:22,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 625 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:36:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-01-31 16:36:22,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 484. [2022-01-31 16:36:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5281837160751566) internal successors, (732), 479 states have internal predecessors, (732), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 736 transitions. [2022-01-31 16:36:22,786 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 736 transitions. Word has length 145 [2022-01-31 16:36:22,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:22,786 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 736 transitions. [2022-01-31 16:36:22,786 INFO L471 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) [2022-01-31 16:36:22,786 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 736 transitions. [2022-01-31 16:36:22,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-31 16:36:22,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:22,787 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:22,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:36:22,788 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:22,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:22,788 INFO L85 PathProgramCache]: Analyzing trace with hash -228541388, now seen corresponding path program 1 times [2022-01-31 16:36:22,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:22,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061232919] [2022-01-31 16:36:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:22,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:36:22,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:22,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061232919] [2022-01-31 16:36:22,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061232919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:22,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:22,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:22,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697338149] [2022-01-31 16:36:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:22,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:22,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:22,887 INFO L87 Difference]: Start difference. First operand 484 states and 736 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:25,257 INFO L93 Difference]: Finished difference Result 516 states and 782 transitions. [2022-01-31 16:36:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:25,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-01-31 16:36:25,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:25,259 INFO L225 Difference]: With dead ends: 516 [2022-01-31 16:36:25,259 INFO L226 Difference]: Without dead ends: 516 [2022-01-31 16:36:25,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:25,259 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 67 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:25,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 537 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:36:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-01-31 16:36:25,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-01-31 16:36:25,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5260960334029228) internal successors, (731), 479 states have internal predecessors, (731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 735 transitions. [2022-01-31 16:36:25,264 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 735 transitions. Word has length 146 [2022-01-31 16:36:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:25,265 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 735 transitions. [2022-01-31 16:36:25,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 735 transitions. [2022-01-31 16:36:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:36:25,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:25,266 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:25,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 16:36:25,266 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:25,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:25,266 INFO L85 PathProgramCache]: Analyzing trace with hash 377443891, now seen corresponding path program 1 times [2022-01-31 16:36:25,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:25,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765089007] [2022-01-31 16:36:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:25,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-01-31 16:36:25,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:25,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765089007] [2022-01-31 16:36:25,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765089007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:25,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:25,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:25,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070931015] [2022-01-31 16:36:25,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:25,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:25,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:25,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:25,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:25,360 INFO L87 Difference]: Start difference. First operand 484 states and 735 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:26,775 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 [] [2022-01-31 16:36:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:29,571 INFO L93 Difference]: Finished difference Result 566 states and 846 transitions. [2022-01-31 16:36:29,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:29,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:36:29,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:29,573 INFO L225 Difference]: With dead ends: 566 [2022-01-31 16:36:29,573 INFO L226 Difference]: Without dead ends: 566 [2022-01-31 16:36:29,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:29,574 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 142 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:29,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 396 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:36:29,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-01-31 16:36:29,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 484. [2022-01-31 16:36:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.511482254697286) internal successors, (724), 479 states have internal predecessors, (724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:29,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 728 transitions. [2022-01-31 16:36:29,579 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 728 transitions. Word has length 147 [2022-01-31 16:36:29,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:29,579 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 728 transitions. [2022-01-31 16:36:29,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:29,579 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 728 transitions. [2022-01-31 16:36:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:36:29,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:29,580 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:29,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 16:36:29,581 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:29,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash 892964340, now seen corresponding path program 1 times [2022-01-31 16:36:29,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:29,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105401348] [2022-01-31 16:36:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:29,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:29,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:29,671 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:36:29,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:29,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105401348] [2022-01-31 16:36:29,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105401348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:29,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:29,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:36:29,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289155365] [2022-01-31 16:36:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:29,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:36:29,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:29,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:36:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:29,672 INFO L87 Difference]: Start difference. First operand 484 states and 728 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:32,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:32,572 INFO L93 Difference]: Finished difference Result 939 states and 1408 transitions. [2022-01-31 16:36:32,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:36:32,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:36:32,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:32,575 INFO L225 Difference]: With dead ends: 939 [2022-01-31 16:36:32,575 INFO L226 Difference]: Without dead ends: 939 [2022-01-31 16:36:32,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:32,576 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:32,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 447 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:36:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-01-31 16:36:32,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-01-31 16:36:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.5032119914346895) internal successors, (1404), 934 states have internal predecessors, (1404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1408 transitions. [2022-01-31 16:36:32,584 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1408 transitions. Word has length 147 [2022-01-31 16:36:32,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:32,584 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1408 transitions. [2022-01-31 16:36:32,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:32,585 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1408 transitions. [2022-01-31 16:36:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:36:32,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:32,586 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:32,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:36:32,586 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:32,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1908090507, now seen corresponding path program 1 times [2022-01-31 16:36:32,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:32,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684008386] [2022-01-31 16:36:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:32,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-01-31 16:36:32,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:32,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684008386] [2022-01-31 16:36:32,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684008386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:32,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:32,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:36:32,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518777949] [2022-01-31 16:36:32,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:32,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:36:32,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:32,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:36:32,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:32,676 INFO L87 Difference]: Start difference. First operand 939 states and 1408 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:34,765 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 [] [2022-01-31 16:36:35,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:35,008 INFO L93 Difference]: Finished difference Result 966 states and 1443 transitions. [2022-01-31 16:36:35,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:36:35,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:36:35,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:35,011 INFO L225 Difference]: With dead ends: 966 [2022-01-31 16:36:35,011 INFO L226 Difference]: Without dead ends: 966 [2022-01-31 16:36:35,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:35,012 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:35,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:36:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-01-31 16:36:35,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-01-31 16:36:35,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4973985431841832) internal successors, (1439), 961 states have internal predecessors, (1439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1443 transitions. [2022-01-31 16:36:35,021 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1443 transitions. Word has length 147 [2022-01-31 16:36:35,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:35,021 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1443 transitions. [2022-01-31 16:36:35,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:35,021 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1443 transitions. [2022-01-31 16:36:35,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:36:35,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:35,023 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:35,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 16:36:35,023 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash 483416694, now seen corresponding path program 1 times [2022-01-31 16:36:35,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:35,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939772805] [2022-01-31 16:36:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:35,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:35,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-01-31 16:36:35,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:35,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939772805] [2022-01-31 16:36:35,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939772805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:35,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:35,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:36:35,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904208087] [2022-01-31 16:36:35,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:35,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:36:35,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:36:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:35,095 INFO L87 Difference]: Start difference. First operand 966 states and 1443 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:36,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:37,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:37,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:37,570 INFO L93 Difference]: Finished difference Result 968 states and 1445 transitions. [2022-01-31 16:36:37,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:36:37,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:36:37,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:37,572 INFO L225 Difference]: With dead ends: 968 [2022-01-31 16:36:37,572 INFO L226 Difference]: Without dead ends: 968 [2022-01-31 16:36:37,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:37,573 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:37,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:36:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-01-31 16:36:37,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-01-31 16:36:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4963655244029075) internal successors, (1441), 963 states have internal predecessors, (1441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1445 transitions. [2022-01-31 16:36:37,581 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1445 transitions. Word has length 147 [2022-01-31 16:36:37,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:37,581 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1445 transitions. [2022-01-31 16:36:37,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:37,582 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1445 transitions. [2022-01-31 16:36:37,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-31 16:36:37,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:37,583 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:37,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 16:36:37,583 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:37,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash 950619995, now seen corresponding path program 1 times [2022-01-31 16:36:37,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:37,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442435189] [2022-01-31 16:36:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:37,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:36:37,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:37,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442435189] [2022-01-31 16:36:37,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442435189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:37,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:37,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:36:37,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040837414] [2022-01-31 16:36:37,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:37,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:36:37,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:37,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:36:37,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:37,716 INFO L87 Difference]: Start difference. First operand 968 states and 1445 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:39,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:39,765 INFO L93 Difference]: Finished difference Result 1423 states and 2125 transitions. [2022-01-31 16:36:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:36:39,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-01-31 16:36:39,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:39,769 INFO L225 Difference]: With dead ends: 1423 [2022-01-31 16:36:39,769 INFO L226 Difference]: Without dead ends: 1423 [2022-01-31 16:36:39,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:39,772 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 153 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:39,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-31 16:36:39,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-01-31 16:36:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-01-31 16:36:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1418 states have (on average 1.495768688293371) internal successors, (2121), 1418 states have internal predecessors, (2121), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2125 transitions. [2022-01-31 16:36:39,784 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2125 transitions. Word has length 149 [2022-01-31 16:36:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:39,784 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 2125 transitions. [2022-01-31 16:36:39,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2125 transitions. [2022-01-31 16:36:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-31 16:36:39,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:39,786 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:39,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 16:36:39,786 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:39,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:39,786 INFO L85 PathProgramCache]: Analyzing trace with hash -685662058, now seen corresponding path program 1 times [2022-01-31 16:36:39,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:39,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124136419] [2022-01-31 16:36:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:39,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-01-31 16:36:39,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:39,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124136419] [2022-01-31 16:36:39,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124136419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:39,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:39,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:39,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302237378] [2022-01-31 16:36:39,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:39,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:39,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:39,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:39,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:39,930 INFO L87 Difference]: Start difference. First operand 1423 states and 2125 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:41,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:42,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:42,695 INFO L93 Difference]: Finished difference Result 1603 states and 2380 transitions. [2022-01-31 16:36:42,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:42,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-01-31 16:36:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:42,699 INFO L225 Difference]: With dead ends: 1603 [2022-01-31 16:36:42,699 INFO L226 Difference]: Without dead ends: 1603 [2022-01-31 16:36:42,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:42,699 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 47 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:42,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 649 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 16:36:42,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-01-31 16:36:42,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1507. [2022-01-31 16:36:42,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.496005326231691) internal successors, (2247), 1502 states have internal predecessors, (2247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:42,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2251 transitions. [2022-01-31 16:36:42,713 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2251 transitions. Word has length 178 [2022-01-31 16:36:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:42,714 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2251 transitions. [2022-01-31 16:36:42,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:42,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2251 transitions. [2022-01-31 16:36:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-31 16:36:42,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:42,716 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:42,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 16:36:42,716 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:42,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:42,717 INFO L85 PathProgramCache]: Analyzing trace with hash -407815232, now seen corresponding path program 1 times [2022-01-31 16:36:42,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:42,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100149965] [2022-01-31 16:36:42,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:42,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:42,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-01-31 16:36:42,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:42,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100149965] [2022-01-31 16:36:42,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100149965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:42,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:42,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:42,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064724021] [2022-01-31 16:36:42,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:42,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:42,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:42,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:42,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:42,835 INFO L87 Difference]: Start difference. First operand 1507 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:44,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:46,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:48,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:49,517 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 [] [2022-01-31 16:36:49,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:49,928 INFO L93 Difference]: Finished difference Result 1718 states and 2514 transitions. [2022-01-31 16:36:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:49,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-01-31 16:36:49,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:49,932 INFO L225 Difference]: With dead ends: 1718 [2022-01-31 16:36:49,932 INFO L226 Difference]: Without dead ends: 1718 [2022-01-31 16:36:49,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:49,933 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 149 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:49,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 402 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-01-31 16:36:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-01-31 16:36:49,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-01-31 16:36:49,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4800266311584553) internal successors, (2223), 1502 states have internal predecessors, (2223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:49,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2227 transitions. [2022-01-31 16:36:49,946 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2227 transitions. Word has length 198 [2022-01-31 16:36:49,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:49,946 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2227 transitions. [2022-01-31 16:36:49,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:49,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2227 transitions. [2022-01-31 16:36:49,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-31 16:36:49,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:49,949 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:49,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 16:36:49,949 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:49,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:49,949 INFO L85 PathProgramCache]: Analyzing trace with hash -216238576, now seen corresponding path program 1 times [2022-01-31 16:36:49,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:49,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202161961] [2022-01-31 16:36:49,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:49,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-01-31 16:36:50,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:50,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202161961] [2022-01-31 16:36:50,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202161961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:50,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:50,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:50,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901573925] [2022-01-31 16:36:50,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:50,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:50,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:50,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:50,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:50,085 INFO L87 Difference]: Start difference. First operand 1507 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:52,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:53,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:53,581 INFO L93 Difference]: Finished difference Result 1718 states and 2490 transitions. [2022-01-31 16:36:53,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:53,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-01-31 16:36:53,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:53,586 INFO L225 Difference]: With dead ends: 1718 [2022-01-31 16:36:53,586 INFO L226 Difference]: Without dead ends: 1718 [2022-01-31 16:36:53,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:53,586 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 134 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:53,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:36:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-01-31 16:36:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-01-31 16:36:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4640479360852197) internal successors, (2199), 1502 states have internal predecessors, (2199), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2203 transitions. [2022-01-31 16:36:53,598 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2203 transitions. Word has length 201 [2022-01-31 16:36:53,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:53,599 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2203 transitions. [2022-01-31 16:36:53,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2203 transitions. [2022-01-31 16:36:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-31 16:36:53,600 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:53,601 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:53,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 16:36:53,601 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:53,601 INFO L85 PathProgramCache]: Analyzing trace with hash -601967675, now seen corresponding path program 1 times [2022-01-31 16:36:53,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:53,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601064043] [2022-01-31 16:36:53,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:53,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:53,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:53,705 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-01-31 16:36:53,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:53,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601064043] [2022-01-31 16:36:53,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601064043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:53,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:53,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:36:53,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199131905] [2022-01-31 16:36:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:53,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:36:53,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:53,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:36:53,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:53,707 INFO L87 Difference]: Start difference. First operand 1507 states and 2203 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:54,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:56,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:56,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:56,852 INFO L93 Difference]: Finished difference Result 1990 states and 2909 transitions. [2022-01-31 16:36:56,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:36:56,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-01-31 16:36:56,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:56,857 INFO L225 Difference]: With dead ends: 1990 [2022-01-31 16:36:56,857 INFO L226 Difference]: Without dead ends: 1990 [2022-01-31 16:36:56,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:56,858 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:56,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:36:56,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2022-01-31 16:36:56,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2022-01-31 16:36:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1985 states have (on average 1.4634760705289673) internal successors, (2905), 1985 states have internal predecessors, (2905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:56,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2909 transitions. [2022-01-31 16:36:56,874 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2909 transitions. Word has length 202 [2022-01-31 16:36:56,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:56,875 INFO L470 AbstractCegarLoop]: Abstraction has 1990 states and 2909 transitions. [2022-01-31 16:36:56,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:56,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2909 transitions. [2022-01-31 16:36:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-01-31 16:36:56,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:56,877 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:56,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 16:36:56,877 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:56,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:56,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1556196570, now seen corresponding path program 1 times [2022-01-31 16:36:56,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:56,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86862616] [2022-01-31 16:36:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:56,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:57,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-01-31 16:36:57,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:57,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86862616] [2022-01-31 16:36:57,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86862616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:57,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:57,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:36:57,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536874447] [2022-01-31 16:36:57,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:57,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:36:57,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:57,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:36:57,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:57,010 INFO L87 Difference]: Start difference. First operand 1990 states and 2909 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:59,229 INFO L93 Difference]: Finished difference Result 2474 states and 3622 transitions. [2022-01-31 16:36:59,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:36:59,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 202 [2022-01-31 16:36:59,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:59,235 INFO L225 Difference]: With dead ends: 2474 [2022-01-31 16:36:59,235 INFO L226 Difference]: Without dead ends: 2474 [2022-01-31 16:36:59,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:59,235 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:59,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-31 16:36:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-01-31 16:36:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-01-31 16:36:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2469 states have (on average 1.465370595382746) internal successors, (3618), 2469 states have internal predecessors, (3618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3622 transitions. [2022-01-31 16:36:59,277 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3622 transitions. Word has length 202 [2022-01-31 16:36:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:59,277 INFO L470 AbstractCegarLoop]: Abstraction has 2474 states and 3622 transitions. [2022-01-31 16:36:59,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3622 transitions. [2022-01-31 16:36:59,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-01-31 16:36:59,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:59,280 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1] [2022-01-31 16:36:59,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 16:36:59,280 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:59,281 INFO L85 PathProgramCache]: Analyzing trace with hash 745953542, now seen corresponding path program 1 times [2022-01-31 16:36:59,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:59,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910543798] [2022-01-31 16:36:59,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:59,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-01-31 16:36:59,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:59,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910543798] [2022-01-31 16:36:59,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910543798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:59,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:59,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:36:59,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299012764] [2022-01-31 16:36:59,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:59,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:36:59,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:59,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:36:59,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:36:59,389 INFO L87 Difference]: Start difference. First operand 2474 states and 3622 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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) [2022-01-31 16:37:00,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:00,410 INFO L93 Difference]: Finished difference Result 2958 states and 4336 transitions. [2022-01-31 16:37:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:00,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 241 [2022-01-31 16:37:00,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:00,417 INFO L225 Difference]: With dead ends: 2958 [2022-01-31 16:37:00,418 INFO L226 Difference]: Without dead ends: 2958 [2022-01-31 16:37:00,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:00,418 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:00,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 386 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 16:37:00,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-01-31 16:37:00,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2022-01-31 16:37:00,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2953 states have (on average 1.4669827294277007) internal successors, (4332), 2953 states have internal predecessors, (4332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:00,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4336 transitions. [2022-01-31 16:37:00,454 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4336 transitions. Word has length 241 [2022-01-31 16:37:00,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:00,455 INFO L470 AbstractCegarLoop]: Abstraction has 2958 states and 4336 transitions. [2022-01-31 16:37:00,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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) [2022-01-31 16:37:00,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4336 transitions. [2022-01-31 16:37:00,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-01-31 16:37:00,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:00,458 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:00,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 16:37:00,458 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:00,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:00,458 INFO L85 PathProgramCache]: Analyzing trace with hash -789418403, now seen corresponding path program 1 times [2022-01-31 16:37:00,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:00,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108912189] [2022-01-31 16:37:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:00,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:00,587 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-01-31 16:37:00,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:00,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108912189] [2022-01-31 16:37:00,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108912189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:00,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:00,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:00,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225648577] [2022-01-31 16:37:00,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:00,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:00,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:00,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:00,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:00,590 INFO L87 Difference]: Start difference. First operand 2958 states and 4336 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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) [2022-01-31 16:37:02,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:02,570 INFO L93 Difference]: Finished difference Result 3442 states and 5051 transitions. [2022-01-31 16:37:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:02,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 243 [2022-01-31 16:37:02,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:02,577 INFO L225 Difference]: With dead ends: 3442 [2022-01-31 16:37:02,577 INFO L226 Difference]: Without dead ends: 3442 [2022-01-31 16:37:02,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:02,578 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:02,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 385 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-31 16:37:02,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-01-31 16:37:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3442. [2022-01-31 16:37:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3437 states have (on average 1.4684317718940938) internal successors, (5047), 3437 states have internal predecessors, (5047), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5051 transitions. [2022-01-31 16:37:02,619 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5051 transitions. Word has length 243 [2022-01-31 16:37:02,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:02,619 INFO L470 AbstractCegarLoop]: Abstraction has 3442 states and 5051 transitions. [2022-01-31 16:37:02,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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) [2022-01-31 16:37:02,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5051 transitions. [2022-01-31 16:37:02,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-01-31 16:37:02,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:02,624 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:02,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 16:37:02,624 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:02,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1100311010, now seen corresponding path program 1 times [2022-01-31 16:37:02,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:02,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29182013] [2022-01-31 16:37:02,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:02,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-01-31 16:37:02,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:02,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29182013] [2022-01-31 16:37:02,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29182013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:02,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:02,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:02,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714852814] [2022-01-31 16:37:02,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:02,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:02,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:02,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:02,776 INFO L87 Difference]: Start difference. First operand 3442 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:05,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:05,100 INFO L93 Difference]: Finished difference Result 3920 states and 5751 transitions. [2022-01-31 16:37:05,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:05,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-01-31 16:37:05,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:05,108 INFO L225 Difference]: With dead ends: 3920 [2022-01-31 16:37:05,108 INFO L226 Difference]: Without dead ends: 3920 [2022-01-31 16:37:05,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:05,109 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:05,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:37:05,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-01-31 16:37:05,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2022-01-31 16:37:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3915 states have (on average 1.4679438058748404) internal successors, (5747), 3915 states have internal predecessors, (5747), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5751 transitions. [2022-01-31 16:37:05,143 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5751 transitions. Word has length 275 [2022-01-31 16:37:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:05,143 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 5751 transitions. [2022-01-31 16:37:05,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:05,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5751 transitions. [2022-01-31 16:37:05,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-01-31 16:37:05,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:05,148 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:05,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 16:37:05,149 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:05,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash -835349277, now seen corresponding path program 1 times [2022-01-31 16:37:05,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:05,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539207151] [2022-01-31 16:37:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:05,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-01-31 16:37:05,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:05,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539207151] [2022-01-31 16:37:05,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539207151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:05,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:05,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:05,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176123923] [2022-01-31 16:37:05,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:05,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:05,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:05,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:05,294 INFO L87 Difference]: Start difference. First operand 3920 states and 5751 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:07,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:08,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:08,257 INFO L93 Difference]: Finished difference Result 4371 states and 6410 transitions. [2022-01-31 16:37:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:08,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-01-31 16:37:08,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:08,265 INFO L225 Difference]: With dead ends: 4371 [2022-01-31 16:37:08,265 INFO L226 Difference]: Without dead ends: 4371 [2022-01-31 16:37:08,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:08,266 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:08,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:37:08,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-01-31 16:37:08,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4371. [2022-01-31 16:37:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4366 states have (on average 1.467246907924874) internal successors, (6406), 4366 states have internal predecessors, (6406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:08,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6410 transitions. [2022-01-31 16:37:08,306 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6410 transitions. Word has length 275 [2022-01-31 16:37:08,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:08,306 INFO L470 AbstractCegarLoop]: Abstraction has 4371 states and 6410 transitions. [2022-01-31 16:37:08,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6410 transitions. [2022-01-31 16:37:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-01-31 16:37:08,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:08,312 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:08,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 16:37:08,312 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:08,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1963979722, now seen corresponding path program 1 times [2022-01-31 16:37:08,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:08,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321254632] [2022-01-31 16:37:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:08,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-01-31 16:37:08,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:08,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321254632] [2022-01-31 16:37:08,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321254632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:08,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:08,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:08,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125666596] [2022-01-31 16:37:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:08,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:08,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:08,491 INFO L87 Difference]: Start difference. First operand 4371 states and 6410 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:10,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:11,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:11,766 INFO L93 Difference]: Finished difference Result 4855 states and 7128 transitions. [2022-01-31 16:37:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:11,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2022-01-31 16:37:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:11,785 INFO L225 Difference]: With dead ends: 4855 [2022-01-31 16:37:11,786 INFO L226 Difference]: Without dead ends: 4855 [2022-01-31 16:37:11,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:11,786 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:11,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 382 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:37:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2022-01-31 16:37:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4855. [2022-01-31 16:37:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 4850 states have (on average 1.4688659793814434) internal successors, (7124), 4850 states have internal predecessors, (7124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:11,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 7128 transitions. [2022-01-31 16:37:11,825 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 7128 transitions. Word has length 350 [2022-01-31 16:37:11,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:11,825 INFO L470 AbstractCegarLoop]: Abstraction has 4855 states and 7128 transitions. [2022-01-31 16:37:11,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:11,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 7128 transitions. [2022-01-31 16:37:11,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-01-31 16:37:11,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:11,856 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:11,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 16:37:11,857 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:11,858 INFO L85 PathProgramCache]: Analyzing trace with hash 153388337, now seen corresponding path program 1 times [2022-01-31 16:37:11,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:11,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786087740] [2022-01-31 16:37:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:11,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-01-31 16:37:12,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:12,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786087740] [2022-01-31 16:37:12,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786087740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:12,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:12,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:12,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181669961] [2022-01-31 16:37:12,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:12,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:12,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:12,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:12,006 INFO L87 Difference]: Start difference. First operand 4855 states and 7128 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 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) [2022-01-31 16:37:13,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:15,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:16,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:16,586 INFO L93 Difference]: Finished difference Result 5339 states and 7847 transitions. [2022-01-31 16:37:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:16,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 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 391 [2022-01-31 16:37:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:16,595 INFO L225 Difference]: With dead ends: 5339 [2022-01-31 16:37:16,595 INFO L226 Difference]: Without dead ends: 5339 [2022-01-31 16:37:16,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:16,595 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:16,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 16:37:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-01-31 16:37:16,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-01-31 16:37:16,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5334 states have (on average 1.4703787026621673) internal successors, (7843), 5334 states have internal predecessors, (7843), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7847 transitions. [2022-01-31 16:37:16,670 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7847 transitions. Word has length 391 [2022-01-31 16:37:16,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:16,671 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 7847 transitions. [2022-01-31 16:37:16,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 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) [2022-01-31 16:37:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7847 transitions. [2022-01-31 16:37:16,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-01-31 16:37:16,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:16,678 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:16,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 16:37:16,678 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:16,679 INFO L85 PathProgramCache]: Analyzing trace with hash 215344654, now seen corresponding path program 1 times [2022-01-31 16:37:16,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:16,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438724244] [2022-01-31 16:37:16,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:16,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-01-31 16:37:16,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:16,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438724244] [2022-01-31 16:37:16,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438724244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:16,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:16,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:16,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951834822] [2022-01-31 16:37:16,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:16,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:16,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:16,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:16,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:16,872 INFO L87 Difference]: Start difference. First operand 5339 states and 7847 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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) [2022-01-31 16:37:19,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:20,239 INFO L93 Difference]: Finished difference Result 5818 states and 8548 transitions. [2022-01-31 16:37:20,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:20,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 398 [2022-01-31 16:37:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:20,257 INFO L225 Difference]: With dead ends: 5818 [2022-01-31 16:37:20,257 INFO L226 Difference]: Without dead ends: 5818 [2022-01-31 16:37:20,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:20,258 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:20,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:37:20,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2022-01-31 16:37:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 5818. [2022-01-31 16:37:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5813 states have (on average 1.469809048683984) internal successors, (8544), 5813 states have internal predecessors, (8544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8548 transitions. [2022-01-31 16:37:20,328 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8548 transitions. Word has length 398 [2022-01-31 16:37:20,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:20,328 INFO L470 AbstractCegarLoop]: Abstraction has 5818 states and 8548 transitions. [2022-01-31 16:37:20,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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) [2022-01-31 16:37:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8548 transitions. [2022-01-31 16:37:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-01-31 16:37:20,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:20,336 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:20,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 16:37:20,336 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:20,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1038136657, now seen corresponding path program 1 times [2022-01-31 16:37:20,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:20,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037579998] [2022-01-31 16:37:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:20,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:20,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2119 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2022-01-31 16:37:20,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:20,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037579998] [2022-01-31 16:37:20,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037579998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:20,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:20,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:20,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802029084] [2022-01-31 16:37:20,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:20,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:20,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:20,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:20,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:20,555 INFO L87 Difference]: Start difference. First operand 5818 states and 8548 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:21,988 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 [] [2022-01-31 16:37:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:23,322 INFO L93 Difference]: Finished difference Result 6302 states and 9269 transitions. [2022-01-31 16:37:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-01-31 16:37:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:23,328 INFO L225 Difference]: With dead ends: 6302 [2022-01-31 16:37:23,328 INFO L226 Difference]: Without dead ends: 6302 [2022-01-31 16:37:23,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:23,328 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:23,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 379 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 16:37:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2022-01-31 16:37:23,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 6302. [2022-01-31 16:37:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6302 states, 6297 states have (on average 1.4713355566142607) internal successors, (9265), 6297 states have internal predecessors, (9265), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6302 states to 6302 states and 9269 transitions. [2022-01-31 16:37:23,423 INFO L78 Accepts]: Start accepts. Automaton has 6302 states and 9269 transitions. Word has length 474 [2022-01-31 16:37:23,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:23,423 INFO L470 AbstractCegarLoop]: Abstraction has 6302 states and 9269 transitions. [2022-01-31 16:37:23,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6302 states and 9269 transitions. [2022-01-31 16:37:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-01-31 16:37:23,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:23,433 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:23,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 16:37:23,433 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:23,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:23,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1782869354, now seen corresponding path program 1 times [2022-01-31 16:37:23,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:23,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7002552] [2022-01-31 16:37:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:23,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 744 proven. 7 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2022-01-31 16:37:23,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:23,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7002552] [2022-01-31 16:37:23,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7002552] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:37:23,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524783278] [2022-01-31 16:37:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:23,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:37:23,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:37:23,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:37:23,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:37:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:24,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-31 16:37:24,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:37:25,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2022-01-31 16:37:25,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:37:25,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524783278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:25,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:37:25,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-01-31 16:37:25,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314128552] [2022-01-31 16:37:25,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:25,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 16:37:25,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:25,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 16:37:25,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:37:25,426 INFO L87 Difference]: Start difference. First operand 6302 states and 9269 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2022-01-31 16:37:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:25,484 INFO L93 Difference]: Finished difference Result 6786 states and 9991 transitions. [2022-01-31 16:37:25,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 16:37:25,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 516 [2022-01-31 16:37:25,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:25,491 INFO L225 Difference]: With dead ends: 6786 [2022-01-31 16:37:25,491 INFO L226 Difference]: Without dead ends: 6786 [2022-01-31 16:37:25,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-31 16:37:25,491 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:25,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 16:37:25,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2022-01-31 16:37:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 6786. [2022-01-31 16:37:25,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 6781 states have (on average 1.4727916236543284) internal successors, (9987), 6781 states have internal predecessors, (9987), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:25,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9991 transitions. [2022-01-31 16:37:25,553 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9991 transitions. Word has length 516 [2022-01-31 16:37:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:25,554 INFO L470 AbstractCegarLoop]: Abstraction has 6786 states and 9991 transitions. [2022-01-31 16:37:25,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2022-01-31 16:37:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9991 transitions. [2022-01-31 16:37:25,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-01-31 16:37:25,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:25,562 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:25,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 16:37:25,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-01-31 16:37:25,775 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:25,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:25,776 INFO L85 PathProgramCache]: Analyzing trace with hash -605380239, now seen corresponding path program 1 times [2022-01-31 16:37:25,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:25,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780452135] [2022-01-31 16:37:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:25,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-01-31 16:37:26,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:26,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780452135] [2022-01-31 16:37:26,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780452135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:26,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:26,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:26,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971445171] [2022-01-31 16:37:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:26,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:26,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:26,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:26,051 INFO L87 Difference]: Start difference. First operand 6786 states and 9991 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:28,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:30,745 INFO L93 Difference]: Finished difference Result 7906 states and 11579 transitions. [2022-01-31 16:37:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:30,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-01-31 16:37:30,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:30,752 INFO L225 Difference]: With dead ends: 7906 [2022-01-31 16:37:30,752 INFO L226 Difference]: Without dead ends: 7906 [2022-01-31 16:37:30,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:30,753 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 65 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:30,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 683 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 588 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-01-31 16:37:30,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7906 states. [2022-01-31 16:37:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7906 to 7360. [2022-01-31 16:37:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7355 states have (on average 1.4739632902787219) internal successors, (10841), 7355 states have internal predecessors, (10841), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:30,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 10845 transitions. [2022-01-31 16:37:30,815 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 10845 transitions. Word has length 524 [2022-01-31 16:37:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:30,815 INFO L470 AbstractCegarLoop]: Abstraction has 7360 states and 10845 transitions. [2022-01-31 16:37:30,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:30,815 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 10845 transitions. [2022-01-31 16:37:30,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-01-31 16:37:30,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:30,823 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:30,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 16:37:30,824 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:30,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:30,824 INFO L85 PathProgramCache]: Analyzing trace with hash -480652685, now seen corresponding path program 1 times [2022-01-31 16:37:30,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:30,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595325182] [2022-01-31 16:37:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:30,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1268 proven. 24 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2022-01-31 16:37:31,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595325182] [2022-01-31 16:37:31,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595325182] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:37:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999716939] [2022-01-31 16:37:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:31,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:37:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:37:31,368 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) [2022-01-31 16:37:31,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 16:37:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:32,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 2456 conjuncts, 42 conjunts are in the unsatisfiable core [2022-01-31 16:37:32,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:37:32,653 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:37:32,653 INFO L387 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 [2022-01-31 16:37:32,768 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-01-31 16:37:32,768 INFO L387 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 [2022-01-31 16:37:33,056 INFO L387 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 [2022-01-31 16:37:33,101 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:37:33,102 INFO L387 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 [2022-01-31 16:37:33,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:37:33,182 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-31 16:37:33,220 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-01-31 16:37:33,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-01-31 16:37:33,270 INFO L353 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-01-31 16:37:33,271 INFO L387 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 6 case distinctions, treesize of input 42 treesize of output 77 [2022-01-31 16:37:33,380 INFO L353 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-01-31 16:37:33,380 INFO L387 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 65 treesize of output 49 [2022-01-31 16:37:33,630 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:37:33,630 INFO L387 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 [2022-01-31 16:37:33,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-01-31 16:37:33,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:37:34,111 INFO L387 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 77 treesize of output 53 [2022-01-31 16:37:34,116 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-01-31 16:37:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-01-31 16:37:36,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999716939] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:37:36,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:37:36,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 14] total 20 [2022-01-31 16:37:36,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701181856] [2022-01-31 16:37:36,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:36,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:37:36,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:37:36,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-01-31 16:37:36,487 INFO L87 Difference]: Start difference. First operand 7360 states and 10845 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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) [2022-01-31 16:37:39,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:43,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:43,999 INFO L93 Difference]: Finished difference Result 14597 states and 21552 transitions. [2022-01-31 16:37:44,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:37:44,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 524 [2022-01-31 16:37:44,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:44,016 INFO L225 Difference]: With dead ends: 14597 [2022-01-31 16:37:44,016 INFO L226 Difference]: Without dead ends: 14597 [2022-01-31 16:37:44,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1065 GetRequests, 1042 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-01-31 16:37:44,017 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 449 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 116 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 175 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:44,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 980 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 525 Invalid, 1 Unknown, 175 Unchecked, 3.4s Time] [2022-01-31 16:37:44,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14597 states. [2022-01-31 16:37:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14597 to 12608. [2022-01-31 16:37:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12608 states, 12603 states have (on average 1.4899627072919146) internal successors, (18778), 12603 states have internal predecessors, (18778), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12608 states to 12608 states and 18782 transitions. [2022-01-31 16:37:44,214 INFO L78 Accepts]: Start accepts. Automaton has 12608 states and 18782 transitions. Word has length 524 [2022-01-31 16:37:44,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:44,215 INFO L470 AbstractCegarLoop]: Abstraction has 12608 states and 18782 transitions. [2022-01-31 16:37:44,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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) [2022-01-31 16:37:44,216 INFO L276 IsEmpty]: Start isEmpty. Operand 12608 states and 18782 transitions. [2022-01-31 16:37:44,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-01-31 16:37:44,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:44,226 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:44,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 16:37:44,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-01-31 16:37:44,450 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:44,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1163721738, now seen corresponding path program 1 times [2022-01-31 16:37:44,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:44,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770166011] [2022-01-31 16:37:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:44,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:44,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-01-31 16:37:44,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:44,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770166011] [2022-01-31 16:37:44,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770166011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:44,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:44,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:44,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411271518] [2022-01-31 16:37:44,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:44,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:44,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:44,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:44,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:44,734 INFO L87 Difference]: Start difference. First operand 12608 states and 18782 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:46,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:48,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:49,579 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 [] [2022-01-31 16:37:50,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:50,961 INFO L93 Difference]: Finished difference Result 13543 states and 20037 transitions. [2022-01-31 16:37:50,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:50,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-01-31 16:37:50,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:50,977 INFO L225 Difference]: With dead ends: 13543 [2022-01-31 16:37:50,977 INFO L226 Difference]: Without dead ends: 13543 [2022-01-31 16:37:50,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:50,979 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 63 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:50,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 681 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:37:50,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-01-31 16:37:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-01-31 16:37:51,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4894190378061345) internal successors, (18792), 12617 states have internal predecessors, (18792), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18796 transitions. [2022-01-31 16:37:51,153 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18796 transitions. Word has length 525 [2022-01-31 16:37:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:51,153 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18796 transitions. [2022-01-31 16:37:51,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18796 transitions. [2022-01-31 16:37:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-01-31 16:37:51,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:51,163 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:51,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 16:37:51,164 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1740174604, now seen corresponding path program 1 times [2022-01-31 16:37:51,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:51,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301501471] [2022-01-31 16:37:51,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:51,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:51,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-01-31 16:37:51,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:51,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301501471] [2022-01-31 16:37:51,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301501471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:51,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:51,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:51,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872606454] [2022-01-31 16:37:51,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:51,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:51,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:51,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:51,404 INFO L87 Difference]: Start difference. First operand 12622 states and 18796 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:54,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:55,702 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 [] [2022-01-31 16:37:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:56,276 INFO L93 Difference]: Finished difference Result 13543 states and 20010 transitions. [2022-01-31 16:37:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-01-31 16:37:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:56,290 INFO L225 Difference]: With dead ends: 13543 [2022-01-31 16:37:56,290 INFO L226 Difference]: Without dead ends: 13543 [2022-01-31 16:37:56,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:56,291 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:56,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 679 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 16:37:56,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-01-31 16:37:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-01-31 16:37:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4872790679242291) internal successors, (18765), 12617 states have internal predecessors, (18765), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18769 transitions. [2022-01-31 16:37:56,403 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18769 transitions. Word has length 546 [2022-01-31 16:37:56,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:56,403 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18769 transitions. [2022-01-31 16:37:56,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18769 transitions. [2022-01-31 16:37:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-01-31 16:37:56,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:56,464 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:56,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 16:37:56,464 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:56,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash -730527589, now seen corresponding path program 1 times [2022-01-31 16:37:56,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:56,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568660613] [2022-01-31 16:37:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:56,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:56,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-01-31 16:37:56,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:56,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568660613] [2022-01-31 16:37:56,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568660613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:56,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:56,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:56,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512661943] [2022-01-31 16:37:56,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:56,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:56,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:56,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:56,674 INFO L87 Difference]: Start difference. First operand 12622 states and 18769 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:59,705 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 [] [2022-01-31 16:38:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:01,113 INFO L93 Difference]: Finished difference Result 13435 states and 19832 transitions. [2022-01-31 16:38:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 547 [2022-01-31 16:38:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:01,126 INFO L225 Difference]: With dead ends: 13435 [2022-01-31 16:38:01,126 INFO L226 Difference]: Without dead ends: 13435 [2022-01-31 16:38:01,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:38:01,126 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 76 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:01,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 671 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:38:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13435 states. [2022-01-31 16:38:01,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13435 to 12622. [2022-01-31 16:38:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4851390980423238) internal successors, (18738), 12617 states have internal predecessors, (18738), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:01,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18742 transitions. [2022-01-31 16:38:01,253 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18742 transitions. Word has length 547 [2022-01-31 16:38:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:01,253 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18742 transitions. [2022-01-31 16:38:01,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18742 transitions. [2022-01-31 16:38:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-01-31 16:38:01,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:01,265 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:01,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 16:38:01,265 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:01,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:01,265 INFO L85 PathProgramCache]: Analyzing trace with hash -811732947, now seen corresponding path program 1 times [2022-01-31 16:38:01,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:01,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615776695] [2022-01-31 16:38:01,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:01,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:01,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1131 proven. 34 refuted. 0 times theorem prover too weak. 1686 trivial. 0 not checked. [2022-01-31 16:38:01,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:01,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615776695] [2022-01-31 16:38:01,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615776695] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:38:01,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450163140] [2022-01-31 16:38:01,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:01,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:38:01,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:38:01,564 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) [2022-01-31 16:38:01,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 16:38:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:02,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 2552 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-31 16:38:02,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:38:03,451 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-01-31 16:38:03,471 INFO L353 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-01-31 16:38:03,471 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 55 [2022-01-31 16:38:03,476 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-01-31 16:38:03,481 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-01-31 16:38:03,573 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 16:38:03,579 INFO L387 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 [2022-01-31 16:38:03,672 INFO L387 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 [2022-01-31 16:38:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2022-01-31 16:38:03,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 16:38:03,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450163140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:03,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-31 16:38:03,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-01-31 16:38:03,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322340820] [2022-01-31 16:38:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:03,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:03,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:03,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:38:03,761 INFO L87 Difference]: Start difference. First operand 12622 states and 18742 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2022-01-31 16:38:04,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:04,538 INFO L93 Difference]: Finished difference Result 13322 states and 19714 transitions. [2022-01-31 16:38:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:04,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 549 [2022-01-31 16:38:04,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:04,552 INFO L225 Difference]: With dead ends: 13322 [2022-01-31 16:38:04,552 INFO L226 Difference]: Without dead ends: 13322 [2022-01-31 16:38:04,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-31 16:38:04,552 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 66 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:04,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 689 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 16:38:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13322 states. [2022-01-31 16:38:04,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13322 to 12776. [2022-01-31 16:38:04,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12776 states, 12771 states have (on average 1.4858664160989743) internal successors, (18976), 12771 states have internal predecessors, (18976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12776 states to 12776 states and 18980 transitions. [2022-01-31 16:38:04,665 INFO L78 Accepts]: Start accepts. Automaton has 12776 states and 18980 transitions. Word has length 549 [2022-01-31 16:38:04,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:04,666 INFO L470 AbstractCegarLoop]: Abstraction has 12776 states and 18980 transitions. [2022-01-31 16:38:04,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2022-01-31 16:38:04,666 INFO L276 IsEmpty]: Start isEmpty. Operand 12776 states and 18980 transitions. [2022-01-31 16:38:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-01-31 16:38:04,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:04,676 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:04,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 16:38:04,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:38:04,888 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:04,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash -802217617, now seen corresponding path program 1 times [2022-01-31 16:38:04,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:04,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819493325] [2022-01-31 16:38:04,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:04,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1096 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-01-31 16:38:05,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:05,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819493325] [2022-01-31 16:38:05,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819493325] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:05,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:05,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:05,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000669922] [2022-01-31 16:38:05,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:05,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:05,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:05,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:05,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:05,156 INFO L87 Difference]: Start difference. First operand 12776 states and 18980 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:08,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:09,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:11,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:12,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:12,316 INFO L93 Difference]: Finished difference Result 12889 states and 19109 transitions. [2022-01-31 16:38:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:12,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 550 [2022-01-31 16:38:12,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:12,330 INFO L225 Difference]: With dead ends: 12889 [2022-01-31 16:38:12,330 INFO L226 Difference]: Without dead ends: 12889 [2022-01-31 16:38:12,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:38:12,331 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 36 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:12,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 630 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-01-31 16:38:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12889 states. [2022-01-31 16:38:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12889 to 12622. [2022-01-31 16:38:12,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.484029484029484) internal successors, (18724), 12617 states have internal predecessors, (18724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:12,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18728 transitions. [2022-01-31 16:38:12,489 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18728 transitions. Word has length 550 [2022-01-31 16:38:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:12,490 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18728 transitions. [2022-01-31 16:38:12,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18728 transitions. [2022-01-31 16:38:12,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-01-31 16:38:12,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:12,502 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:12,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-31 16:38:12,503 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:12,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:12,503 INFO L85 PathProgramCache]: Analyzing trace with hash 887619099, now seen corresponding path program 1 times [2022-01-31 16:38:12,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:12,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865060697] [2022-01-31 16:38:12,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:12,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:12,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1134 proven. 28 refuted. 0 times theorem prover too weak. 1717 trivial. 0 not checked. [2022-01-31 16:38:12,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:12,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865060697] [2022-01-31 16:38:12,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865060697] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:38:12,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268682806] [2022-01-31 16:38:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:12,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:38:12,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:38:12,790 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) [2022-01-31 16:38:12,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 16:38:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:14,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 2572 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-31 16:38:14,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:38:14,157 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:38:14,158 INFO L387 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 [2022-01-31 16:38:14,205 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:38:14,205 INFO L387 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 [2022-01-31 16:38:14,507 INFO L387 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 [2022-01-31 16:38:14,678 INFO L387 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 36 treesize of output 24 [2022-01-31 16:38:14,694 INFO L353 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-01-31 16:38:14,694 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 65 [2022-01-31 16:38:14,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:14,703 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-31 16:38:14,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:14,716 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-01-31 16:38:14,772 INFO L387 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 32 treesize of output 26 [2022-01-31 16:38:14,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:14,776 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 13 [2022-01-31 16:38:14,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:14,791 INFO L387 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 25 treesize of output 13 [2022-01-31 16:38:14,888 INFO L387 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 [2022-01-31 16:38:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1129 proven. 220 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-01-31 16:38:14,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:38:15,159 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-01-31 16:38:15,162 INFO L387 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 48 treesize of output 46 [2022-01-31 16:38:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1124 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-01-31 16:38:15,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268682806] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:38:15,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:38:15,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-01-31 16:38:15,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393500642] [2022-01-31 16:38:15,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:15,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:15,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:15,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:15,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-31 16:38:15,509 INFO L87 Difference]: Start difference. First operand 12622 states and 18728 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2022-01-31 16:38:17,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:17,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:17,456 INFO L93 Difference]: Finished difference Result 14348 states and 21107 transitions. [2022-01-31 16:38:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:17,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 552 [2022-01-31 16:38:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:17,471 INFO L225 Difference]: With dead ends: 14348 [2022-01-31 16:38:17,471 INFO L226 Difference]: Without dead ends: 14348 [2022-01-31 16:38:17,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:38:17,471 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 117 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:17,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 561 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 16:38:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14348 states. [2022-01-31 16:38:17,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14348 to 12636. [2022-01-31 16:38:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12631 states have (on average 1.4834929934288654) internal successors, (18738), 12631 states have internal predecessors, (18738), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:17,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 18742 transitions. [2022-01-31 16:38:17,587 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 18742 transitions. Word has length 552 [2022-01-31 16:38:17,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:17,587 INFO L470 AbstractCegarLoop]: Abstraction has 12636 states and 18742 transitions. [2022-01-31 16:38:17,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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) [2022-01-31 16:38:17,587 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 18742 transitions. [2022-01-31 16:38:17,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-01-31 16:38:17,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:17,599 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:17,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 16:38:17,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:38:17,809 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1184654259, now seen corresponding path program 1 times [2022-01-31 16:38:17,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:17,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000446696] [2022-01-31 16:38:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:17,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:18,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:18,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1870 proven. 642 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-01-31 16:38:18,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:18,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000446696] [2022-01-31 16:38:18,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000446696] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:38:18,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549305757] [2022-01-31 16:38:18,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:18,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:38:18,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:38:18,716 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) [2022-01-31 16:38:18,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 16:38:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:20,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 2548 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-31 16:38:20,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:38:20,242 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:38:20,242 INFO L387 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 [2022-01-31 16:38:20,543 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:38:20,543 INFO L387 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 [2022-01-31 16:38:20,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:20,639 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-31 16:38:20,662 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-01-31 16:38:20,664 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-01-31 16:38:20,692 INFO L353 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-01-31 16:38:20,692 INFO L387 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 55 [2022-01-31 16:38:20,791 INFO L353 Elim1Store]: treesize reduction 80, result has 35.0 percent of original size [2022-01-31 16:38:20,792 INFO L387 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 52 treesize of output 72 [2022-01-31 16:38:20,870 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:38:20,871 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-01-31 16:38:20,936 INFO L387 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 [2022-01-31 16:38:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1785 proven. 72 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-01-31 16:38:21,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:38:21,416 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-01-31 16:38:21,418 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-01-31 16:38:25,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-01-31 16:38:25,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549305757] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:38:25,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:38:25,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 9] total 21 [2022-01-31 16:38:25,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88699616] [2022-01-31 16:38:25,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:25,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:25,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:25,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:25,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=352, Unknown=1, NotChecked=0, Total=420 [2022-01-31 16:38:25,365 INFO L87 Difference]: Start difference. First operand 12636 states and 18742 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 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) [2022-01-31 16:38:26,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:27,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:27,093 INFO L93 Difference]: Finished difference Result 18787 states and 27816 transitions. [2022-01-31 16:38:27,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:27,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 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 553 [2022-01-31 16:38:27,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:27,113 INFO L225 Difference]: With dead ends: 18787 [2022-01-31 16:38:27,113 INFO L226 Difference]: Without dead ends: 18787 [2022-01-31 16:38:27,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1128 GetRequests, 1106 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=72, Invalid=389, Unknown=1, NotChecked=0, Total=462 [2022-01-31 16:38:27,114 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 160 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:27,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 909 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 286 Invalid, 0 Unknown, 109 Unchecked, 1.7s Time] [2022-01-31 16:38:27,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18787 states. [2022-01-31 16:38:27,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18787 to 12949. [2022-01-31 16:38:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12949 states, 12944 states have (on average 1.4817676143386898) internal successors, (19180), 12944 states have internal predecessors, (19180), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:27,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12949 states to 12949 states and 19184 transitions. [2022-01-31 16:38:27,251 INFO L78 Accepts]: Start accepts. Automaton has 12949 states and 19184 transitions. Word has length 553 [2022-01-31 16:38:27,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:27,251 INFO L470 AbstractCegarLoop]: Abstraction has 12949 states and 19184 transitions. [2022-01-31 16:38:27,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 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) [2022-01-31 16:38:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 12949 states and 19184 transitions. [2022-01-31 16:38:27,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-01-31 16:38:27,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:27,265 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:27,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-31 16:38:27,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-01-31 16:38:27,476 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:27,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:27,476 INFO L85 PathProgramCache]: Analyzing trace with hash 338088257, now seen corresponding path program 1 times [2022-01-31 16:38:27,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:27,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078257074] [2022-01-31 16:38:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:27,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1109 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-01-31 16:38:27,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:27,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078257074] [2022-01-31 16:38:27,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078257074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:27,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:27,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:27,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662817808] [2022-01-31 16:38:27,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:27,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:27,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:27,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:27,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:27,838 INFO L87 Difference]: Start difference. First operand 12949 states and 19184 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:30,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:32,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:33,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:34,296 INFO L93 Difference]: Finished difference Result 14431 states and 21326 transitions. [2022-01-31 16:38:34,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:34,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-01-31 16:38:34,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:34,313 INFO L225 Difference]: With dead ends: 14431 [2022-01-31 16:38:34,313 INFO L226 Difference]: Without dead ends: 14431 [2022-01-31 16:38:34,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:38:34,314 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 38 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:34,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 631 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-01-31 16:38:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14431 states. [2022-01-31 16:38:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 13813. [2022-01-31 16:38:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13813 states, 13808 states have (on average 1.4808806488991888) internal successors, (20448), 13808 states have internal predecessors, (20448), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13813 states to 13813 states and 20452 transitions. [2022-01-31 16:38:34,485 INFO L78 Accepts]: Start accepts. Automaton has 13813 states and 20452 transitions. Word has length 553 [2022-01-31 16:38:34,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:34,486 INFO L470 AbstractCegarLoop]: Abstraction has 13813 states and 20452 transitions. [2022-01-31 16:38:34,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 13813 states and 20452 transitions. [2022-01-31 16:38:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-01-31 16:38:34,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:34,501 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:34,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-31 16:38:34,501 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:34,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:34,502 INFO L85 PathProgramCache]: Analyzing trace with hash -34821972, now seen corresponding path program 1 times [2022-01-31 16:38:34,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:34,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224708064] [2022-01-31 16:38:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:34,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1195 proven. 1429 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-01-31 16:38:35,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:35,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224708064] [2022-01-31 16:38:35,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224708064] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:38:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468716173] [2022-01-31 16:38:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:35,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:38:35,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:38:35,756 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) [2022-01-31 16:38:35,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 16:38:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:37,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 92 conjunts are in the unsatisfiable core [2022-01-31 16:38:37,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:38:37,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:37,365 INFO L387 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:38:37,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:37,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:37,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:37,524 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:38:37,524 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 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 [2022-01-31 16:38:38,036 INFO L387 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 [2022-01-31 16:38:38,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,149 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-01-31 16:38:38,171 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-01-31 16:38:38,172 INFO L387 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 [2022-01-31 16:38:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,183 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2022-01-31 16:38:38,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,836 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-01-31 16:38:38,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,855 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-01-31 16:38:38,855 INFO L387 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 [2022-01-31 16:38:38,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:38:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,923 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:38:38,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,927 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:38:38,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:38,947 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:38:38,948 INFO L387 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 [2022-01-31 16:38:39,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:39,826 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-01-31 16:38:39,826 INFO L387 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 [2022-01-31 16:38:39,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:39,859 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-01-31 16:38:39,859 INFO L387 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 [2022-01-31 16:38:39,903 INFO L353 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-01-31 16:38:39,903 INFO L387 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 [2022-01-31 16:38:43,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,391 INFO L387 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 302 treesize of output 242 [2022-01-31 16:38:43,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,398 INFO L387 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 302 treesize of output 248 [2022-01-31 16:38:43,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:43,426 INFO L353 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-01-31 16:38:43,426 INFO L387 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 302 treesize of output 321 [2022-01-31 16:38:48,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,538 INFO L387 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 328 treesize of output 258 [2022-01-31 16:38:48,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,546 INFO L387 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 328 treesize of output 264 [2022-01-31 16:38:48,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,571 INFO L353 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-01-31 16:38:48,572 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 337 treesize of output 328 [2022-01-31 16:38:48,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,948 INFO L387 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 260 treesize of output 182 [2022-01-31 16:38:48,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,952 INFO L387 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 182 treesize of output 104 [2022-01-31 16:38:48,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:48,996 INFO L353 Elim1Store]: treesize reduction 126, result has 29.2 percent of original size [2022-01-31 16:38:48,996 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 149 [2022-01-31 16:38:49,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:49,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:49,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:49,084 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:38:49,084 INFO L387 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 1 case distinctions, treesize of input 33 treesize of output 35 [2022-01-31 16:38:49,333 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:38:49,334 INFO L387 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 1 case distinctions, treesize of input 23 treesize of output 11 [2022-01-31 16:38:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1228 proven. 435 refuted. 0 times theorem prover too weak. 1226 trivial. 0 not checked. [2022-01-31 16:38:49,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:38:58,057 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:38:58,057 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 814 treesize of output 782 [2022-01-31 16:38:58,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,109 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:38:58,109 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 702 treesize of output 690 [2022-01-31 16:38:58,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,220 INFO L353 Elim1Store]: treesize reduction 126, result has 26.3 percent of original size [2022-01-31 16:38:58,220 INFO L387 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 704 treesize of output 658 [2022-01-31 16:38:58,225 INFO L387 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 656 treesize of output 638 [2022-01-31 16:38:58,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:38:58,230 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 633 treesize of output 597 [2022-01-31 16:38:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-01-31 16:38:59,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468716173] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:38:59,271 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:38:59,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22, 14] total 50 [2022-01-31 16:38:59,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363224939] [2022-01-31 16:38:59,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:38:59,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-01-31 16:38:59,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:59,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-01-31 16:38:59,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2164, Unknown=1, NotChecked=0, Total=2450 [2022-01-31 16:38:59,272 INFO L87 Difference]: Start difference. First operand 13813 states and 20452 transitions. Second operand has 50 states, 50 states have (on average 17.8) internal successors, (890), 48 states have internal predecessors, (890), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:39:01,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:04,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:06,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:08,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:10,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:11,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:13,943 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 [] [2022-01-31 16:41:02,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:41:02,130 INFO L93 Difference]: Finished difference Result 385136 states and 560628 transitions. [2022-01-31 16:41:02,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 617 states. [2022-01-31 16:41:02,130 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 17.8) internal successors, (890), 48 states have internal predecessors, (890), 2 states have call successors, (5), 3 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 553 [2022-01-31 16:41:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:41:02,851 INFO L225 Difference]: With dead ends: 385136 [2022-01-31 16:41:02,851 INFO L226 Difference]: Without dead ends: 385002 [2022-01-31 16:41:02,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2301 GetRequests, 1544 SyntacticMatches, 96 SemanticMatches, 661 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 221401 ImplicationChecksByTransitivity, 64.0s TimeCoverageRelationStatistics Valid=35055, Invalid=403850, Unknown=1, NotChecked=0, Total=438906 [2022-01-31 16:41:02,881 INFO L933 BasicCegarLoop]: 2449 mSDtfsCounter, 11750 mSDsluCounter, 48936 mSDsCounter, 0 mSdLazyCounter, 42803 mSolverCounterSat, 2088 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11750 SdHoareTripleChecker+Valid, 51385 SdHoareTripleChecker+Invalid, 69782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2088 IncrementalHoareTripleChecker+Valid, 42803 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 24889 IncrementalHoareTripleChecker+Unchecked, 59.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:41:02,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11750 Valid, 51385 Invalid, 69782 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2088 Valid, 42803 Invalid, 2 Unknown, 24889 Unchecked, 59.4s Time] [2022-01-31 16:41:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385002 states. [2022-01-31 16:41:06,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385002 to 211294. [2022-01-31 16:41:06,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211294 states, 211289 states have (on average 1.488544126764763) internal successors, (314513), 211289 states have internal predecessors, (314513), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211294 states to 211294 states and 314517 transitions. [2022-01-31 16:41:07,316 INFO L78 Accepts]: Start accepts. Automaton has 211294 states and 314517 transitions. Word has length 553 [2022-01-31 16:41:07,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:41:07,316 INFO L470 AbstractCegarLoop]: Abstraction has 211294 states and 314517 transitions. [2022-01-31 16:41:07,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 17.8) internal successors, (890), 48 states have internal predecessors, (890), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:07,320 INFO L276 IsEmpty]: Start isEmpty. Operand 211294 states and 314517 transitions. [2022-01-31 16:41:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-01-31 16:41:07,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:41:07,581 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:41:07,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-31 16:41:07,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-01-31 16:41:07,795 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:41:07,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:41:07,796 INFO L85 PathProgramCache]: Analyzing trace with hash 257473385, now seen corresponding path program 1 times [2022-01-31 16:41:07,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:41:07,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224575944] [2022-01-31 16:41:07,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:07,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:41:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:08,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:41:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 1307 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-01-31 16:41:08,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:41:08,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224575944] [2022-01-31 16:41:08,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224575944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:41:08,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:41:08,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:41:08,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017184155] [2022-01-31 16:41:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:41:08,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:41:08,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:41:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:41:08,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:41:08,146 INFO L87 Difference]: Start difference. First operand 211294 states and 314517 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:09,229 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 [] [2022-01-31 16:41:10,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:12,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:13,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:14,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:41:14,795 INFO L93 Difference]: Finished difference Result 220269 states and 325774 transitions. [2022-01-31 16:41:14,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:41:14,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 556 [2022-01-31 16:41:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:41:15,189 INFO L225 Difference]: With dead ends: 220269 [2022-01-31 16:41:15,190 INFO L226 Difference]: Without dead ends: 220269 [2022-01-31 16:41:15,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:41:15,190 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 70 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:41:15,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 669 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 566 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-01-31 16:41:15,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220269 states. [2022-01-31 16:41:17,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220269 to 211294. [2022-01-31 16:41:17,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211294 states, 211289 states have (on average 1.4866604508516772) internal successors, (314115), 211289 states have internal predecessors, (314115), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:18,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211294 states to 211294 states and 314119 transitions. [2022-01-31 16:41:18,072 INFO L78 Accepts]: Start accepts. Automaton has 211294 states and 314119 transitions. Word has length 556 [2022-01-31 16:41:18,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:41:18,072 INFO L470 AbstractCegarLoop]: Abstraction has 211294 states and 314119 transitions. [2022-01-31 16:41:18,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 211294 states and 314119 transitions. [2022-01-31 16:41:18,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-01-31 16:41:18,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:41:18,355 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:41:18,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-31 16:41:18,355 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:41:18,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:41:18,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1640350642, now seen corresponding path program 1 times [2022-01-31 16:41:18,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:41:18,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546888127] [2022-01-31 16:41:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:18,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:41:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:18,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:41:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2869 backedges. 1317 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-01-31 16:41:18,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:41:18,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546888127] [2022-01-31 16:41:18,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546888127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:41:18,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:41:18,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:41:18,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238301018] [2022-01-31 16:41:18,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:41:18,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:41:18,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:41:18,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:41:18,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:41:18,667 INFO L87 Difference]: Start difference. First operand 211294 states and 314119 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:20,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:21,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:23,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:25,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:41:25,322 INFO L93 Difference]: Finished difference Result 218841 states and 323038 transitions. [2022-01-31 16:41:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:41:25,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 557 [2022-01-31 16:41:25,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:41:25,748 INFO L225 Difference]: With dead ends: 218841 [2022-01-31 16:41:25,748 INFO L226 Difference]: Without dead ends: 218841 [2022-01-31 16:41:25,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:41:25,749 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 59 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:41:25,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 659 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-01-31 16:41:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218841 states. [2022-01-31 16:41:27,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218841 to 211294. [2022-01-31 16:41:28,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211294 states, 211289 states have (on average 1.4847767749385912) internal successors, (313717), 211289 states have internal predecessors, (313717), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211294 states to 211294 states and 313721 transitions. [2022-01-31 16:41:28,880 INFO L78 Accepts]: Start accepts. Automaton has 211294 states and 313721 transitions. Word has length 557 [2022-01-31 16:41:28,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:41:28,885 INFO L470 AbstractCegarLoop]: Abstraction has 211294 states and 313721 transitions. [2022-01-31 16:41:28,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:28,885 INFO L276 IsEmpty]: Start isEmpty. Operand 211294 states and 313721 transitions. [2022-01-31 16:41:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-01-31 16:41:29,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:41:29,060 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:41:29,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-31 16:41:29,065 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:41:29,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:41:29,065 INFO L85 PathProgramCache]: Analyzing trace with hash 153813677, now seen corresponding path program 1 times [2022-01-31 16:41:29,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:41:29,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314744924] [2022-01-31 16:41:29,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:29,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:41:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:41:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 1093 proven. 0 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2022-01-31 16:41:29,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:41:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314744924] [2022-01-31 16:41:29,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314744924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:41:29,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:41:29,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:41:29,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990061906] [2022-01-31 16:41:29,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:41:29,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:41:29,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:41:29,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:41:29,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:41:29,305 INFO L87 Difference]: Start difference. First operand 211294 states and 313721 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:31,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:33,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:34,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:36,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:37,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:41:37,315 INFO L93 Difference]: Finished difference Result 223899 states and 330363 transitions. [2022-01-31 16:41:37,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:41:37,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 557 [2022-01-31 16:41:37,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:41:37,605 INFO L225 Difference]: With dead ends: 223899 [2022-01-31 16:41:37,606 INFO L226 Difference]: Without dead ends: 223899 [2022-01-31 16:41:37,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:41:37,606 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 14 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:41:37,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 601 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-01-31 16:41:37,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223899 states. [2022-01-31 16:41:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223899 to 218882. [2022-01-31 16:41:39,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218882 states, 218877 states have (on average 1.479511323711491) internal successors, (323831), 218877 states have internal predecessors, (323831), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218882 states to 218882 states and 323835 transitions. [2022-01-31 16:41:40,608 INFO L78 Accepts]: Start accepts. Automaton has 218882 states and 323835 transitions. Word has length 557 [2022-01-31 16:41:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:41:40,608 INFO L470 AbstractCegarLoop]: Abstraction has 218882 states and 323835 transitions. [2022-01-31 16:41:40,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 218882 states and 323835 transitions. [2022-01-31 16:41:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-01-31 16:41:40,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:41:40,777 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:41:40,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-31 16:41:40,777 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:41:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:41:40,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1438775020, now seen corresponding path program 1 times [2022-01-31 16:41:40,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:41:40,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894052888] [2022-01-31 16:41:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:40,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:41:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:41:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2922 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-01-31 16:41:41,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:41:41,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894052888] [2022-01-31 16:41:41,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894052888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:41:41,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:41:41,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:41:41,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517224463] [2022-01-31 16:41:41,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:41:41,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:41:41,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:41:41,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:41:41,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:41:41,224 INFO L87 Difference]: Start difference. First operand 218882 states and 323835 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:43,230 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 [] [2022-01-31 16:41:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:41:44,311 INFO L93 Difference]: Finished difference Result 230438 states and 338466 transitions. [2022-01-31 16:41:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:41:44,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-01-31 16:41:44,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:41:44,662 INFO L225 Difference]: With dead ends: 230438 [2022-01-31 16:41:44,662 INFO L226 Difference]: Without dead ends: 230438 [2022-01-31 16:41:44,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:41:44,663 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 54 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:41:44,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 664 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:41:44,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230438 states. [2022-01-31 16:41:47,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230438 to 218338. [2022-01-31 16:41:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218338 states, 218333 states have (on average 1.4771472933546463) internal successors, (322510), 218333 states have internal predecessors, (322510), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218338 states to 218338 states and 322514 transitions. [2022-01-31 16:41:47,915 INFO L78 Accepts]: Start accepts. Automaton has 218338 states and 322514 transitions. Word has length 558 [2022-01-31 16:41:47,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:41:47,915 INFO L470 AbstractCegarLoop]: Abstraction has 218338 states and 322514 transitions. [2022-01-31 16:41:47,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 218338 states and 322514 transitions. [2022-01-31 16:41:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-01-31 16:41:48,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:41:48,114 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:41:48,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-31 16:41:48,115 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:41:48,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:41:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash 746960561, now seen corresponding path program 1 times [2022-01-31 16:41:48,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:41:48,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013524658] [2022-01-31 16:41:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:48,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:41:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:41:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1156 proven. 1406 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-01-31 16:41:49,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:41:49,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013524658] [2022-01-31 16:41:49,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013524658] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:41:49,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597014276] [2022-01-31 16:41:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:49,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:41:49,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:41:49,762 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) [2022-01-31 16:41:49,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-31 16:41:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:51,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2609 conjuncts, 47 conjunts are in the unsatisfiable core [2022-01-31 16:41:51,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:41:51,851 INFO L387 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 [2022-01-31 16:41:51,924 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:51,924 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-01-31 16:41:51,963 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:51,964 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-01-31 16:41:51,973 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:51,974 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-01-31 16:41:52,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:52,180 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-01-31 16:41:52,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:52,210 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:41:52,210 INFO L387 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 45 treesize of output 69 [2022-01-31 16:41:52,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:52,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-01-31 16:41:52,284 INFO L353 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-01-31 16:41:52,284 INFO L387 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 67 treesize of output 83 [2022-01-31 16:41:52,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:52,288 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 68 [2022-01-31 16:41:52,294 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:52,294 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 68 [2022-01-31 16:41:52,339 INFO L387 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 89 treesize of output 65 [2022-01-31 16:41:52,340 INFO L387 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 65 treesize of output 41 [2022-01-31 16:41:52,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-01-31 16:41:52,491 INFO L387 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 [2022-01-31 16:41:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1633 proven. 61 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2022-01-31 16:41:52,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:41:54,216 INFO L387 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 32 treesize of output 20 [2022-01-31 16:41:54,218 INFO L387 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 28 treesize of output 16 [2022-01-31 16:41:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1607 proven. 87 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2022-01-31 16:41:54,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597014276] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:41:54,653 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:41:54,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10, 10] total 35 [2022-01-31 16:41:54,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452399908] [2022-01-31 16:41:54,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:41:54,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-31 16:41:54,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:41:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-31 16:41:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1065, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 16:41:54,655 INFO L87 Difference]: Start difference. First operand 218338 states and 322514 transitions. Second operand has 35 states, 35 states have (on average 19.885714285714286) internal successors, (696), 34 states have internal predecessors, (696), 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) [2022-01-31 16:41:56,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:58,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:00,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:02,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:05,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:06,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:08,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:10,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:11,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:16,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:17,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:42:19,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:44:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:44:12,528 INFO L93 Difference]: Finished difference Result 3602270 states and 5102042 transitions. [2022-01-31 16:44:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 608 states. [2022-01-31 16:44:12,529 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 19.885714285714286) internal successors, (696), 34 states have internal predecessors, (696), 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 558 [2022-01-31 16:44:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted.