/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-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:33:04,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:33:04,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:33:04,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:33:04,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:33:04,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:33:04,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:33:04,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:33:04,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:33:04,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:33:04,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:33:04,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:33:04,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:33:04,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:33:04,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:33:04,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:33:04,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:33:04,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:33:04,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:33:04,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:33:04,922 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:33:04,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:33:04,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:33:04,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:33:04,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:33:04,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 04:33:04,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 04:33:04,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 04:33:04,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 04:33:04,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 04:33:04,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 04:33:04,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 04:33:04,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 04:33:04,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 04:33:04,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 04:33:04,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 04:33:04,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 04:33:04,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 04:33:04,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 04:33:04,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:33:04,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:33:04,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:33:04,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:33:04,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:33:04,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:33:04,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:33:04,948 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:33:04,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:33:04,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:33:04,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:33:04,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:33:04,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:33:04,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:33:04,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:33:04,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:33:04,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:33:04,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:33:04,950 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:33:04,951 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:33:05,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:33:05,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:33:05,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:33:05,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:33:05,167 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:33:05,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-04-05 04:33:05,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64a64255/bb8c9601f7ab49b5b87efeb7be63e1ba/FLAG6a0352579 [2022-04-05 04:33:05,637 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:33:05,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-04-05 04:33:05,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64a64255/bb8c9601f7ab49b5b87efeb7be63e1ba/FLAG6a0352579 [2022-04-05 04:33:06,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64a64255/bb8c9601f7ab49b5b87efeb7be63e1ba [2022-04-05 04:33:06,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:33:06,012 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:33:06,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:33:06,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:33:06,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:33:06,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7239e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06, skipping insertion in model container [2022-04-05 04:33:06,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:33:06,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:33:06,340 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-2.c[76259,76272] [2022-04-05 04:33:06,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:33:06,355 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:33:06,479 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-2.c[76259,76272] [2022-04-05 04:33:06,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:33:06,508 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:33:06,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06 WrapperNode [2022-04-05 04:33:06,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:33:06,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:33:06,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:33:06,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:33:06,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:33:06,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:33:06,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:33:06,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:33:06,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (1/1) ... [2022-04-05 04:33:06,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:33:06,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:33:06,652 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) [2022-04-05 04:33:06,665 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 [2022-04-05 04:33:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:33:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:33:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:33:06,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 04:33:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 04:33:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:33:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 04:33:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:33:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:33:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:33:06,692 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:33:06,692 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:33:06,693 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:33:06,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:33:06,693 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:33:06,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:33:06,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:33:06,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:33:06,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:33:06,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:33:06,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:33:06,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:33:06,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:33:06,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:33:06,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:33:06,843 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:33:06,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:33:07,531 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:33:07,966 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 04:33:07,966 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 04:33:07,974 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:33:07,998 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:33:07,998 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:33:08,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:33:08 BoogieIcfgContainer [2022-04-05 04:33:08,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:33:08,001 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:33:08,001 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:33:08,012 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:33:08,014 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:33:08" (1/1) ... [2022-04-05 04:33:08,015 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:33:08,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:33:08 BasicIcfg [2022-04-05 04:33:08,063 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:33:08,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:33:08,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:33:08,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:33:08,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:33:06" (1/4) ... [2022-04-05 04:33:08,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e36c252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:33:08, skipping insertion in model container [2022-04-05 04:33:08,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:33:06" (2/4) ... [2022-04-05 04:33:08,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e36c252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:33:08, skipping insertion in model container [2022-04-05 04:33:08,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:33:08" (3/4) ... [2022-04-05 04:33:08,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e36c252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:33:08, skipping insertion in model container [2022-04-05 04:33:08,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:33:08" (4/4) ... [2022-04-05 04:33:08,071 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cJordan [2022-04-05 04:33:08,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:33:08,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:33:08,119 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:33:08,139 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 04:33:08,139 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:33:08,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 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) [2022-04-05 04:33:08,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-05 04:33:08,157 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:08,158 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:08,158 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-04-05 04:33:08,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:08,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386146415] [2022-04-05 04:33:08,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:08,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:08,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:08,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:08,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386146415] [2022-04-05 04:33:08,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386146415] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:08,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:08,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:08,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645608937] [2022-04-05 04:33:08,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:08,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:08,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:08,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:08,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:08,628 INFO L87 Difference]: Start difference. First operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:10,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:10,461 INFO L93 Difference]: Finished difference Result 297 states and 497 transitions. [2022-04-05 04:33:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:10,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-04-05 04:33:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:10,471 INFO L225 Difference]: With dead ends: 297 [2022-04-05 04:33:10,471 INFO L226 Difference]: Without dead ends: 271 [2022-04-05 04:33:10,473 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:10,477 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 164 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:10,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 493 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-05 04:33:10,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-04-05 04:33:10,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 187. [2022-04-05 04:33:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.6153846153846154) internal successors, (294), 182 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 298 transitions. [2022-04-05 04:33:10,544 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 298 transitions. Word has length 49 [2022-04-05 04:33:10,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:10,545 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 298 transitions. [2022-04-05 04:33:10,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 298 transitions. [2022-04-05 04:33:10,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:33:10,546 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:10,546 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:10,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:33:10,547 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:10,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:10,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1256262427, now seen corresponding path program 1 times [2022-04-05 04:33:10,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:10,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772154402] [2022-04-05 04:33:10,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:10,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:10,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:10,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:10,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772154402] [2022-04-05 04:33:10,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772154402] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:10,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:10,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:10,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036134718] [2022-04-05 04:33:10,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:10,712 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:10,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:10,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:10,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:10,717 INFO L87 Difference]: Start difference. First operand 187 states and 298 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:12,683 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 [] [2022-04-05 04:33:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:13,012 INFO L93 Difference]: Finished difference Result 215 states and 338 transitions. [2022-04-05 04:33:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:13,013 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 [2022-04-05 04:33:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:13,014 INFO L225 Difference]: With dead ends: 215 [2022-04-05 04:33:13,014 INFO L226 Difference]: Without dead ends: 215 [2022-04-05 04:33:13,014 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:13,015 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 22 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:13,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 511 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 04:33:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-04-05 04:33:13,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-04-05 04:33:13,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.621761658031088) internal successors, (313), 193 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) [2022-04-05 04:33:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 317 transitions. [2022-04-05 04:33:13,022 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 317 transitions. Word has length 50 [2022-04-05 04:33:13,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:13,022 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 317 transitions. [2022-04-05 04:33:13,023 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:13,023 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 317 transitions. [2022-04-05 04:33:13,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 04:33:13,024 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:13,024 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:13,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:33:13,024 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:13,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash 821038722, now seen corresponding path program 1 times [2022-04-05 04:33:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:13,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454790948] [2022-04-05 04:33:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:13,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:13,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:13,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:13,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454790948] [2022-04-05 04:33:13,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454790948] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:13,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:13,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:13,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492841454] [2022-04-05 04:33:13,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:13,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:13,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:13,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:13,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:13,142 INFO L87 Difference]: Start difference. First operand 198 states and 317 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:16,538 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 [] [2022-04-05 04:33:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:17,565 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-04-05 04:33:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:17,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 04:33:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:17,567 INFO L225 Difference]: With dead ends: 215 [2022-04-05 04:33:17,567 INFO L226 Difference]: Without dead ends: 215 [2022-04-05 04:33:17,567 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:17,568 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 24 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:17,568 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 513 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 04:33:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-04-05 04:33:17,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-04-05 04:33:17,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.616580310880829) internal successors, (312), 193 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 316 transitions. [2022-04-05 04:33:17,574 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 316 transitions. Word has length 63 [2022-04-05 04:33:17,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:17,574 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 316 transitions. [2022-04-05 04:33:17,574 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 316 transitions. [2022-04-05 04:33:17,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:33:17,575 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:17,576 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:17,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:33:17,576 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:17,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:17,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2114147329, now seen corresponding path program 1 times [2022-04-05 04:33:17,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:17,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600561435] [2022-04-05 04:33:17,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:17,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:17,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:17,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600561435] [2022-04-05 04:33:17,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600561435] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:17,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:17,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:17,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349673291] [2022-04-05 04:33:17,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:17,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:17,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:17,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:17,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:17,693 INFO L87 Difference]: Start difference. First operand 198 states and 316 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) [2022-04-05 04:33:19,934 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 [] [2022-04-05 04:33:21,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:23,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:23,098 INFO L93 Difference]: Finished difference Result 214 states and 335 transitions. [2022-04-05 04:33:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:23,101 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 [2022-04-05 04:33:23,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:23,102 INFO L225 Difference]: With dead ends: 214 [2022-04-05 04:33:23,102 INFO L226 Difference]: Without dead ends: 214 [2022-04-05 04:33:23,102 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:23,103 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:23,103 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 04:33:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-04-05 04:33:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 198. [2022-04-05 04:33:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.61139896373057) internal successors, (311), 193 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 315 transitions. [2022-04-05 04:33:23,108 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 315 transitions. Word has length 64 [2022-04-05 04:33:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:23,108 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 315 transitions. [2022-04-05 04:33:23,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 315 transitions. [2022-04-05 04:33:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:33:23,109 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:23,109 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:23,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:33:23,109 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:23,110 INFO L85 PathProgramCache]: Analyzing trace with hash 826373151, now seen corresponding path program 1 times [2022-04-05 04:33:23,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:23,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987080750] [2022-04-05 04:33:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:23,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:23,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:23,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:23,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987080750] [2022-04-05 04:33:23,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987080750] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:23,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:23,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:23,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485150295] [2022-04-05 04:33:23,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:23,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:23,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:23,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:23,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:23,224 INFO L87 Difference]: Start difference. First operand 198 states and 315 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) [2022-04-05 04:33:25,487 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 [] [2022-04-05 04:33:26,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:26,547 INFO L93 Difference]: Finished difference Result 321 states and 506 transitions. [2022-04-05 04:33:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:26,547 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 [2022-04-05 04:33:26,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:26,548 INFO L225 Difference]: With dead ends: 321 [2022-04-05 04:33:26,548 INFO L226 Difference]: Without dead ends: 321 [2022-04-05 04:33:26,548 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:26,549 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 159 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:26,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 04:33:26,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-04-05 04:33:26,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 210. [2022-04-05 04:33:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.5951219512195123) internal successors, (327), 205 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2022-04-05 04:33:26,554 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 64 [2022-04-05 04:33:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:26,554 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2022-04-05 04:33:26,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2022-04-05 04:33:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:33:26,558 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:26,559 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:26,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:33:26,559 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:26,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash -230789025, now seen corresponding path program 1 times [2022-04-05 04:33:26,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:26,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115378497] [2022-04-05 04:33:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:26,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:26,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:26,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115378497] [2022-04-05 04:33:26,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115378497] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:26,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:26,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:26,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178308802] [2022-04-05 04:33:26,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:26,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:26,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:26,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:26,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:26,664 INFO L87 Difference]: Start difference. First operand 210 states and 331 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:29,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:30,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:31,921 INFO L93 Difference]: Finished difference Result 321 states and 503 transitions. [2022-04-05 04:33:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:31,922 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 [2022-04-05 04:33:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:31,923 INFO L225 Difference]: With dead ends: 321 [2022-04-05 04:33:31,923 INFO L226 Difference]: Without dead ends: 321 [2022-04-05 04:33:31,923 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:31,924 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 153 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:31,924 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 04:33:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-04-05 04:33:31,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 215. [2022-04-05 04:33:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5904761904761904) internal successors, (334), 210 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) [2022-04-05 04:33:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 338 transitions. [2022-04-05 04:33:31,928 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 338 transitions. Word has length 64 [2022-04-05 04:33:31,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:31,928 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 338 transitions. [2022-04-05 04:33:31,929 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 338 transitions. [2022-04-05 04:33:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:33:31,929 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:31,929 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:31,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:33:31,929 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1540051073, now seen corresponding path program 1 times [2022-04-05 04:33:31,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:31,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240910899] [2022-04-05 04:33:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:31,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:32,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:32,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240910899] [2022-04-05 04:33:32,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240910899] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:32,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:32,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:32,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719170426] [2022-04-05 04:33:32,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:32,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:32,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:32,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:32,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:32,010 INFO L87 Difference]: Start difference. First operand 215 states and 338 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) [2022-04-05 04:33:33,884 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 [] [2022-04-05 04:33:35,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:35,442 INFO L93 Difference]: Finished difference Result 320 states and 499 transitions. [2022-04-05 04:33:35,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:35,443 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 [2022-04-05 04:33:35,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:35,444 INFO L225 Difference]: With dead ends: 320 [2022-04-05 04:33:35,444 INFO L226 Difference]: Without dead ends: 320 [2022-04-05 04:33:35,445 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:35,445 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 151 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:35,445 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-05 04:33:35,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-04-05 04:33:35,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-04-05 04:33:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 211 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) [2022-04-05 04:33:35,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 337 transitions. [2022-04-05 04:33:35,450 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 337 transitions. Word has length 64 [2022-04-05 04:33:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:35,450 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 337 transitions. [2022-04-05 04:33:35,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 337 transitions. [2022-04-05 04:33:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:33:35,451 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:35,451 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:35,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:33:35,451 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:35,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1577451682, now seen corresponding path program 1 times [2022-04-05 04:33:35,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:35,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012561427] [2022-04-05 04:33:35,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:35,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:35,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:35,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012561427] [2022-04-05 04:33:35,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012561427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:35,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:35,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:35,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145686117] [2022-04-05 04:33:35,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:35,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:35,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:35,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:35,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:35,547 INFO L87 Difference]: Start difference. First operand 216 states and 337 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) [2022-04-05 04:33:38,871 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 [] [2022-04-05 04:33:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:39,315 INFO L93 Difference]: Finished difference Result 320 states and 496 transitions. [2022-04-05 04:33:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:39,315 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 [2022-04-05 04:33:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:39,316 INFO L225 Difference]: With dead ends: 320 [2022-04-05 04:33:39,316 INFO L226 Difference]: Without dead ends: 320 [2022-04-05 04:33:39,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:39,317 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:39,317 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 04:33:39,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-04-05 04:33:39,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-04-05 04:33:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5639810426540284) internal successors, (330), 211 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 334 transitions. [2022-04-05 04:33:39,321 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 334 transitions. Word has length 65 [2022-04-05 04:33:39,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:39,322 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 334 transitions. [2022-04-05 04:33:39,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:39,322 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 334 transitions. [2022-04-05 04:33:39,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:33:39,322 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:39,322 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:39,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:33:39,323 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:39,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:39,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1615094397, now seen corresponding path program 1 times [2022-04-05 04:33:39,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:39,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355029140] [2022-04-05 04:33:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:39,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:39,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:39,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355029140] [2022-04-05 04:33:39,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355029140] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:39,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:39,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:39,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450822157] [2022-04-05 04:33:39,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:39,409 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:39,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:39,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:39,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:39,410 INFO L87 Difference]: Start difference. First operand 216 states and 334 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) [2022-04-05 04:33:40,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:43,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:45,269 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 [] [2022-04-05 04:33:45,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:45,592 INFO L93 Difference]: Finished difference Result 229 states and 350 transitions. [2022-04-05 04:33:45,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:45,592 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 [2022-04-05 04:33:45,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:45,593 INFO L225 Difference]: With dead ends: 229 [2022-04-05 04:33:45,593 INFO L226 Difference]: Without dead ends: 229 [2022-04-05 04:33:45,593 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:45,594 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 20 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:45,594 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 04:33:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-04-05 04:33:45,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 216. [2022-04-05 04:33:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5592417061611374) internal successors, (329), 211 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) [2022-04-05 04:33:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2022-04-05 04:33:45,597 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 66 [2022-04-05 04:33:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:45,598 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2022-04-05 04:33:45,598 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:45,598 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2022-04-05 04:33:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:33:45,598 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:45,598 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:45,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:33:45,599 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:45,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:45,599 INFO L85 PathProgramCache]: Analyzing trace with hash -181923963, now seen corresponding path program 1 times [2022-04-05 04:33:45,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:45,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162195246] [2022-04-05 04:33:45,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:45,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:45,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:45,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162195246] [2022-04-05 04:33:45,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162195246] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:45,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:45,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:45,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379764071] [2022-04-05 04:33:45,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:45,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:45,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:45,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:45,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:45,712 INFO L87 Difference]: Start difference. First operand 216 states and 333 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) [2022-04-05 04:33:48,722 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 [] [2022-04-05 04:33:49,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:49,043 INFO L93 Difference]: Finished difference Result 219 states and 336 transitions. [2022-04-05 04:33:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:49,043 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 [2022-04-05 04:33:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:49,045 INFO L225 Difference]: With dead ends: 219 [2022-04-05 04:33:49,045 INFO L226 Difference]: Without dead ends: 219 [2022-04-05 04:33:49,045 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:49,046 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:49,047 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 04:33:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-04-05 04:33:49,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-04-05 04:33:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5545023696682465) internal successors, (328), 211 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:49,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 332 transitions. [2022-04-05 04:33:49,051 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 332 transitions. Word has length 67 [2022-04-05 04:33:49,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:49,051 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 332 transitions. [2022-04-05 04:33:49,051 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:49,051 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 332 transitions. [2022-04-05 04:33:49,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:33:49,052 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:49,052 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:49,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:33:49,052 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:49,052 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-04-05 04:33:49,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:49,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303699260] [2022-04-05 04:33:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 04:33:49,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:49,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303699260] [2022-04-05 04:33:49,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303699260] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:49,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:49,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388670023] [2022-04-05 04:33:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:49,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:49,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:49,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:49,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:49,170 INFO L87 Difference]: Start difference. First operand 216 states and 332 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) [2022-04-05 04:33:50,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:52,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:54,577 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 [] [2022-04-05 04:33:55,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:55,863 INFO L93 Difference]: Finished difference Result 320 states and 493 transitions. [2022-04-05 04:33:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:55,864 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 [2022-04-05 04:33:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:55,865 INFO L225 Difference]: With dead ends: 320 [2022-04-05 04:33:55,865 INFO L226 Difference]: Without dead ends: 320 [2022-04-05 04:33:55,865 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:33:55,866 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 128 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:55,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 04:33:55,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-04-05 04:33:55,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 238. [2022-04-05 04:33:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.592274678111588) internal successors, (371), 233 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 375 transitions. [2022-04-05 04:33:55,870 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 375 transitions. Word has length 67 [2022-04-05 04:33:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:55,870 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 375 transitions. [2022-04-05 04:33:55,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 375 transitions. [2022-04-05 04:33:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-04-05 04:33:55,871 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:55,871 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:55,871 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:33:55,871 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:55,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:55,872 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-04-05 04:33:55,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:55,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966122018] [2022-04-05 04:33:55,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:55,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-05 04:33:55,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:55,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966122018] [2022-04-05 04:33:55,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966122018] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:55,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:55,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:55,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030221603] [2022-04-05 04:33:55,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:55,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:55,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:55,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:55,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:55,993 INFO L87 Difference]: Start difference. First operand 238 states and 375 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:58,361 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 [] [2022-04-05 04:34:00,386 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 [] [2022-04-05 04:34:01,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:01,685 INFO L93 Difference]: Finished difference Result 280 states and 435 transitions. [2022-04-05 04:34:01,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:01,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-04-05 04:34:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:01,686 INFO L225 Difference]: With dead ends: 280 [2022-04-05 04:34:01,686 INFO L226 Difference]: Without dead ends: 280 [2022-04-05 04:34:01,686 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:01,687 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 30 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:01,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 535 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 04:34:01,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-04-05 04:34:01,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 260. [2022-04-05 04:34:01,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.588235294117647) internal successors, (405), 255 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 409 transitions. [2022-04-05 04:34:01,691 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 409 transitions. Word has length 95 [2022-04-05 04:34:01,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:01,691 INFO L478 AbstractCegarLoop]: Abstraction has 260 states and 409 transitions. [2022-04-05 04:34:01,691 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 409 transitions. [2022-04-05 04:34:01,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-04-05 04:34:01,692 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:01,692 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:01,692 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:34:01,692 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:01,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:01,693 INFO L85 PathProgramCache]: Analyzing trace with hash 664162408, now seen corresponding path program 1 times [2022-04-05 04:34:01,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:01,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978318043] [2022-04-05 04:34:01,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:01,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:01,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:34:01,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:01,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978318043] [2022-04-05 04:34:01,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978318043] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:01,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:01,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:01,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864800377] [2022-04-05 04:34:01,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:01,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:01,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:01,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:01,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:01,800 INFO L87 Difference]: Start difference. First operand 260 states and 409 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:04,497 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 [] [2022-04-05 04:34:07,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:07,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:07,763 INFO L93 Difference]: Finished difference Result 380 states and 591 transitions. [2022-04-05 04:34:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:07,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-04-05 04:34:07,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:07,765 INFO L225 Difference]: With dead ends: 380 [2022-04-05 04:34:07,765 INFO L226 Difference]: Without dead ends: 380 [2022-04-05 04:34:07,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:07,766 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 151 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:07,766 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 634 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 04:34:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-04-05 04:34:07,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 276. [2022-04-05 04:34:07,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5756457564575646) internal successors, (427), 271 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:07,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 431 transitions. [2022-04-05 04:34:07,770 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 431 transitions. Word has length 108 [2022-04-05 04:34:07,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:07,770 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 431 transitions. [2022-04-05 04:34:07,770 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 431 transitions. [2022-04-05 04:34:07,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 04:34:07,771 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:07,771 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:07,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:34:07,771 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:07,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:07,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-04-05 04:34:07,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:07,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088825990] [2022-04-05 04:34:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:07,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:07,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:07,896 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 04:34:07,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:07,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088825990] [2022-04-05 04:34:07,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088825990] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:07,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:07,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:07,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892066635] [2022-04-05 04:34:07,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:07,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:07,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:07,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:07,898 INFO L87 Difference]: Start difference. First operand 276 states and 431 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:10,215 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 [] [2022-04-05 04:34:11,432 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 [] [2022-04-05 04:34:12,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:12,264 INFO L93 Difference]: Finished difference Result 289 states and 446 transitions. [2022-04-05 04:34:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:12,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-05 04:34:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:12,266 INFO L225 Difference]: With dead ends: 289 [2022-04-05 04:34:12,266 INFO L226 Difference]: Without dead ends: 289 [2022-04-05 04:34:12,266 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:12,266 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 20 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:12,267 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 600 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 04:34:12,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-04-05 04:34:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-04-05 04:34:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5719557195571956) internal successors, (426), 271 states have internal predecessors, (426), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 430 transitions. [2022-04-05 04:34:12,271 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 430 transitions. Word has length 109 [2022-04-05 04:34:12,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:12,271 INFO L478 AbstractCegarLoop]: Abstraction has 276 states and 430 transitions. [2022-04-05 04:34:12,271 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:12,271 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 430 transitions. [2022-04-05 04:34:12,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 04:34:12,272 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:12,272 INFO L499 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] [2022-04-05 04:34:12,272 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:34:12,272 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:12,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:12,272 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-04-05 04:34:12,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:12,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556972582] [2022-04-05 04:34:12,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:12,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:12,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:12,377 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-05 04:34:12,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:12,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556972582] [2022-04-05 04:34:12,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556972582] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:12,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:12,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:34:12,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551699786] [2022-04-05 04:34:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:12,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:34:12,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:12,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:34:12,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:12,378 INFO L87 Difference]: Start difference. First operand 276 states and 430 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:16,324 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 [] [2022-04-05 04:34:18,348 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 [] [2022-04-05 04:34:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:18,771 INFO L93 Difference]: Finished difference Result 285 states and 441 transitions. [2022-04-05 04:34:18,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:34:18,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 04:34:18,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:18,772 INFO L225 Difference]: With dead ends: 285 [2022-04-05 04:34:18,772 INFO L226 Difference]: Without dead ends: 285 [2022-04-05 04:34:18,774 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:34:18,775 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:18,775 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-05 04:34:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-04-05 04:34:18,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-04-05 04:34:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5607142857142857) internal successors, (437), 280 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-04-05 04:34:18,779 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 110 [2022-04-05 04:34:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:18,780 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-04-05 04:34:18,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:18,780 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-04-05 04:34:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-04-05 04:34:18,780 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:18,781 INFO L499 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] [2022-04-05 04:34:18,781 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:34:18,781 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:18,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:18,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1418030591, now seen corresponding path program 1 times [2022-04-05 04:34:18,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:18,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627687627] [2022-04-05 04:34:18,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:18,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:18,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:34:18,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:18,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627687627] [2022-04-05 04:34:18,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627687627] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:18,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:18,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:18,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630063225] [2022-04-05 04:34:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:18,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:18,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:18,897 INFO L87 Difference]: Start difference. First operand 285 states and 441 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:20,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:22,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:24,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:26,198 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 [] [2022-04-05 04:34:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:26,631 INFO L93 Difference]: Finished difference Result 376 states and 566 transitions. [2022-04-05 04:34:26,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:26,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-04-05 04:34:26,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:26,633 INFO L225 Difference]: With dead ends: 376 [2022-04-05 04:34:26,633 INFO L226 Difference]: Without dead ends: 376 [2022-04-05 04:34:26,633 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:26,633 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 153 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:26,633 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 492 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-04-05 04:34:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-04-05 04:34:26,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 285. [2022-04-05 04:34:26,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5464285714285715) internal successors, (433), 280 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 437 transitions. [2022-04-05 04:34:26,638 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 437 transitions. Word has length 112 [2022-04-05 04:34:26,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:26,638 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 437 transitions. [2022-04-05 04:34:26,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 437 transitions. [2022-04-05 04:34:26,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 04:34:26,639 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:26,639 INFO L499 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] [2022-04-05 04:34:26,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:34:26,639 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:26,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:26,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-04-05 04:34:26,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:26,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32206170] [2022-04-05 04:34:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:26,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:26,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:34:26,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:26,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32206170] [2022-04-05 04:34:26,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32206170] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:26,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:26,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:26,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415072326] [2022-04-05 04:34:26,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:26,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:26,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:26,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:26,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:26,722 INFO L87 Difference]: Start difference. First operand 285 states and 437 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) [2022-04-05 04:34:28,251 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 [] [2022-04-05 04:34:29,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:30,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:32,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:32,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:32,969 INFO L93 Difference]: Finished difference Result 302 states and 458 transitions. [2022-04-05 04:34:32,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:32,969 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 [2022-04-05 04:34:32,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:32,970 INFO L225 Difference]: With dead ends: 302 [2022-04-05 04:34:32,970 INFO L226 Difference]: Without dead ends: 302 [2022-04-05 04:34:32,970 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:32,971 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:32,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 04:34:32,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-04-05 04:34:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-04-05 04:34:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.542857142857143) internal successors, (432), 280 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) [2022-04-05 04:34:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 436 transitions. [2022-04-05 04:34:32,975 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 436 transitions. Word has length 113 [2022-04-05 04:34:32,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:32,975 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 436 transitions. [2022-04-05 04:34:32,975 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 436 transitions. [2022-04-05 04:34:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 04:34:32,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:32,976 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:32,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:34:32,976 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:32,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-04-05 04:34:32,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:32,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271156897] [2022-04-05 04:34:32,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:32,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:34:33,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:33,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271156897] [2022-04-05 04:34:33,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271156897] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:33,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:33,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:33,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51181955] [2022-04-05 04:34:33,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:33,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:33,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:33,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:33,118 INFO L87 Difference]: Start difference. First operand 285 states and 436 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:34,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:36,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:38,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:38,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:38,654 INFO L93 Difference]: Finished difference Result 392 states and 595 transitions. [2022-04-05 04:34:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:38,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 04:34:38,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:38,656 INFO L225 Difference]: With dead ends: 392 [2022-04-05 04:34:38,656 INFO L226 Difference]: Without dead ends: 392 [2022-04-05 04:34:38,656 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:38,657 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:38,657 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 535 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 534 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 04:34:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-04-05 04:34:38,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 319. [2022-04-05 04:34:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.5477707006369428) internal successors, (486), 314 states have internal predecessors, (486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 490 transitions. [2022-04-05 04:34:38,661 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 490 transitions. Word has length 117 [2022-04-05 04:34:38,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:38,661 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 490 transitions. [2022-04-05 04:34:38,661 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 490 transitions. [2022-04-05 04:34:38,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 04:34:38,662 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:38,662 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:38,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:34:38,662 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:38,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:38,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-04-05 04:34:38,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:38,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510622659] [2022-04-05 04:34:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:38,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:34:38,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:38,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510622659] [2022-04-05 04:34:38,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510622659] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:38,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:38,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955730570] [2022-04-05 04:34:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:38,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:38,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:38,803 INFO L87 Difference]: Start difference. First operand 319 states and 490 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:40,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:42,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:43,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:43,386 INFO L93 Difference]: Finished difference Result 486 states and 747 transitions. [2022-04-05 04:34:43,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:43,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 04:34:43,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:43,387 INFO L225 Difference]: With dead ends: 486 [2022-04-05 04:34:43,388 INFO L226 Difference]: Without dead ends: 486 [2022-04-05 04:34:43,388 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:43,388 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 133 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:43,388 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 406 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 04:34:43,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-04-05 04:34:43,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 349. [2022-04-05 04:34:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.558139534883721) internal successors, (536), 344 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 540 transitions. [2022-04-05 04:34:43,393 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 540 transitions. Word has length 117 [2022-04-05 04:34:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:43,393 INFO L478 AbstractCegarLoop]: Abstraction has 349 states and 540 transitions. [2022-04-05 04:34:43,393 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 540 transitions. [2022-04-05 04:34:43,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 04:34:43,394 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:43,394 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:43,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:34:43,394 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:43,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:43,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-04-05 04:34:43,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:43,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219139340] [2022-04-05 04:34:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:43,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:43,510 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-05 04:34:43,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:43,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219139340] [2022-04-05 04:34:43,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219139340] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:43,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:43,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:43,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324754403] [2022-04-05 04:34:43,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:43,511 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:43,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:43,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:43,512 INFO L87 Difference]: Start difference. First operand 349 states and 540 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:45,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:47,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:48,325 INFO L93 Difference]: Finished difference Result 430 states and 651 transitions. [2022-04-05 04:34:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:48,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-05 04:34:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:48,326 INFO L225 Difference]: With dead ends: 430 [2022-04-05 04:34:48,327 INFO L226 Difference]: Without dead ends: 430 [2022-04-05 04:34:48,327 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:48,327 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:48,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-05 04:34:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-04-05 04:34:48,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 349. [2022-04-05 04:34:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.5406976744186047) internal successors, (530), 344 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 534 transitions. [2022-04-05 04:34:48,332 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 534 transitions. Word has length 122 [2022-04-05 04:34:48,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:48,332 INFO L478 AbstractCegarLoop]: Abstraction has 349 states and 534 transitions. [2022-04-05 04:34:48,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:48,332 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 534 transitions. [2022-04-05 04:34:48,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 04:34:48,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:48,333 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:48,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:34:48,333 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:48,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:48,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-04-05 04:34:48,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:48,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576873542] [2022-04-05 04:34:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:48,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:34:48,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:48,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576873542] [2022-04-05 04:34:48,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576873542] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:48,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:48,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:48,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907195993] [2022-04-05 04:34:48,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:48,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:48,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:48,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:48,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:48,470 INFO L87 Difference]: Start difference. First operand 349 states and 534 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:50,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:51,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:52,956 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 [] [2022-04-05 04:34:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:53,376 INFO L93 Difference]: Finished difference Result 446 states and 679 transitions. [2022-04-05 04:34:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:53,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 04:34:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:53,378 INFO L225 Difference]: With dead ends: 446 [2022-04-05 04:34:53,378 INFO L226 Difference]: Without dead ends: 446 [2022-04-05 04:34:53,378 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:53,379 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 87 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:53,379 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 513 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 04:34:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-04-05 04:34:53,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 388. [2022-04-05 04:34:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 383 states have (on average 1.5456919060052219) internal successors, (592), 383 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 596 transitions. [2022-04-05 04:34:53,383 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 596 transitions. Word has length 123 [2022-04-05 04:34:53,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:53,384 INFO L478 AbstractCegarLoop]: Abstraction has 388 states and 596 transitions. [2022-04-05 04:34:53,384 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 596 transitions. [2022-04-05 04:34:53,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 04:34:53,384 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:53,384 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:53,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:34:53,385 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:53,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:53,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2124891711, now seen corresponding path program 1 times [2022-04-05 04:34:53,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:53,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828501402] [2022-04-05 04:34:53,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:53,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:34:53,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:53,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828501402] [2022-04-05 04:34:53,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828501402] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:53,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:53,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:53,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331361823] [2022-04-05 04:34:53,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:53,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:53,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:53,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:53,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:53,496 INFO L87 Difference]: Start difference. First operand 388 states and 596 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:56,248 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 [] [2022-04-05 04:34:58,274 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 [] [2022-04-05 04:34:59,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:59,465 INFO L93 Difference]: Finished difference Result 509 states and 776 transitions. [2022-04-05 04:34:59,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:59,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 04:34:59,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:59,468 INFO L225 Difference]: With dead ends: 509 [2022-04-05 04:34:59,468 INFO L226 Difference]: Without dead ends: 509 [2022-04-05 04:34:59,469 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:34:59,469 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:59,469 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 376 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 04:34:59,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-04-05 04:34:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 386. [2022-04-05 04:34:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5459317585301837) internal successors, (589), 381 states have internal predecessors, (589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:59,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 593 transitions. [2022-04-05 04:34:59,474 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 593 transitions. Word has length 123 [2022-04-05 04:34:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:59,474 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 593 transitions. [2022-04-05 04:34:59,474 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 593 transitions. [2022-04-05 04:34:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 04:34:59,475 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:59,475 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:59,475 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:34:59,475 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:59,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:59,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-04-05 04:34:59,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:59,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036209941] [2022-04-05 04:34:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:59,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:34:59,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:59,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036209941] [2022-04-05 04:34:59,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036209941] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:59,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:59,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:59,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343426364] [2022-04-05 04:34:59,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:59,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:59,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:59,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:59,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:59,565 INFO L87 Difference]: Start difference. First operand 386 states and 593 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) [2022-04-05 04:35:01,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:03,502 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 [] [2022-04-05 04:35:03,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:03,947 INFO L93 Difference]: Finished difference Result 467 states and 708 transitions. [2022-04-05 04:35:03,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:03,948 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 [2022-04-05 04:35:03,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:03,949 INFO L225 Difference]: With dead ends: 467 [2022-04-05 04:35:03,949 INFO L226 Difference]: Without dead ends: 467 [2022-04-05 04:35:03,949 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:03,950 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:03,950 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 04:35:03,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-04-05 04:35:03,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-04-05 04:35:03,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5406824146981628) internal successors, (587), 381 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:03,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 591 transitions. [2022-04-05 04:35:03,954 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 591 transitions. Word has length 124 [2022-04-05 04:35:03,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:03,954 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 591 transitions. [2022-04-05 04:35:03,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:03,955 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 591 transitions. [2022-04-05 04:35:03,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 04:35:03,955 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:03,955 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:03,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 04:35:03,956 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:03,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-04-05 04:35:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:03,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292261206] [2022-04-05 04:35:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:03,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 04:35:04,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:04,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292261206] [2022-04-05 04:35:04,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292261206] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:04,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:04,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:04,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466750369] [2022-04-05 04:35:04,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:04,049 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:04,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:04,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:04,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:04,049 INFO L87 Difference]: Start difference. First operand 386 states and 591 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:06,218 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 [] [2022-04-05 04:35:08,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:09,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:09,423 INFO L93 Difference]: Finished difference Result 473 states and 719 transitions. [2022-04-05 04:35:09,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:09,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 04:35:09,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:09,424 INFO L225 Difference]: With dead ends: 473 [2022-04-05 04:35:09,424 INFO L226 Difference]: Without dead ends: 473 [2022-04-05 04:35:09,424 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:09,425 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 68 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:09,425 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 513 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 04:35:09,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-04-05 04:35:09,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 429. [2022-04-05 04:35:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5400943396226414) internal successors, (653), 424 states have internal predecessors, (653), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 657 transitions. [2022-04-05 04:35:09,430 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 657 transitions. Word has length 131 [2022-04-05 04:35:09,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:09,430 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 657 transitions. [2022-04-05 04:35:09,430 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:09,430 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 657 transitions. [2022-04-05 04:35:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 04:35:09,431 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:09,431 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:09,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:35:09,431 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash 346753369, now seen corresponding path program 1 times [2022-04-05 04:35:09,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:09,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362573095] [2022-04-05 04:35:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:09,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-04-05 04:35:09,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:09,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362573095] [2022-04-05 04:35:09,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362573095] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:09,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:09,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:09,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977722066] [2022-04-05 04:35:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:09,574 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:09,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:09,575 INFO L87 Difference]: Start difference. First operand 429 states and 657 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:11,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:13,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:14,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:16,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:17,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:17,118 INFO L93 Difference]: Finished difference Result 475 states and 722 transitions. [2022-04-05 04:35:17,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:17,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 04:35:17,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:17,120 INFO L225 Difference]: With dead ends: 475 [2022-04-05 04:35:17,120 INFO L226 Difference]: Without dead ends: 475 [2022-04-05 04:35:17,120 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:17,121 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 35 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:17,121 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 631 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 04:35:17,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-04-05 04:35:17,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 453. [2022-04-05 04:35:17,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5357142857142858) internal successors, (688), 448 states have internal predecessors, (688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 692 transitions. [2022-04-05 04:35:17,126 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 692 transitions. Word has length 131 [2022-04-05 04:35:17,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:17,126 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 692 transitions. [2022-04-05 04:35:17,126 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 692 transitions. [2022-04-05 04:35:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 04:35:17,127 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:17,128 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:17,128 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:35:17,128 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:17,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:17,129 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-04-05 04:35:17,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:17,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096922636] [2022-04-05 04:35:17,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:17,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:17,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:35:17,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:17,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096922636] [2022-04-05 04:35:17,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096922636] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:17,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:17,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:17,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739765690] [2022-04-05 04:35:17,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:17,235 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:17,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:17,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:17,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:17,235 INFO L87 Difference]: Start difference. First operand 453 states and 692 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) [2022-04-05 04:35:19,246 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 [] [2022-04-05 04:35:19,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:19,672 INFO L93 Difference]: Finished difference Result 574 states and 866 transitions. [2022-04-05 04:35:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:19,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-05 04:35:19,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:19,674 INFO L225 Difference]: With dead ends: 574 [2022-04-05 04:35:19,674 INFO L226 Difference]: Without dead ends: 574 [2022-04-05 04:35:19,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:19,674 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:19,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 396 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:35:19,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-04-05 04:35:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 483. [2022-04-05 04:35:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5271966527196652) internal successors, (730), 478 states have internal predecessors, (730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:19,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 734 transitions. [2022-04-05 04:35:19,680 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 734 transitions. Word has length 144 [2022-04-05 04:35:19,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:19,680 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 734 transitions. [2022-04-05 04:35:19,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:19,680 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 734 transitions. [2022-04-05 04:35:19,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 04:35:19,681 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:19,681 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:19,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 04:35:19,681 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-04-05 04:35:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:19,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117359630] [2022-04-05 04:35:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:19,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:35:19,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:19,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117359630] [2022-04-05 04:35:19,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117359630] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:19,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:19,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:19,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942320119] [2022-04-05 04:35:19,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:19,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:19,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:19,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:19,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:19,803 INFO L87 Difference]: Start difference. First operand 483 states and 734 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) [2022-04-05 04:35:21,518 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 [] [2022-04-05 04:35:23,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:25,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:26,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:26,679 INFO L93 Difference]: Finished difference Result 525 states and 793 transitions. [2022-04-05 04:35:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:26,679 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 [2022-04-05 04:35:26,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:26,681 INFO L225 Difference]: With dead ends: 525 [2022-04-05 04:35:26,681 INFO L226 Difference]: Without dead ends: 525 [2022-04-05 04:35:26,681 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:26,681 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:26,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 517 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 501 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 04:35:26,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-04-05 04:35:26,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 483. [2022-04-05 04:35:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5251046025104602) internal successors, (729), 478 states have internal predecessors, (729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:26,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 733 transitions. [2022-04-05 04:35:26,686 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 733 transitions. Word has length 145 [2022-04-05 04:35:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:26,686 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 733 transitions. [2022-04-05 04:35:26,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:26,687 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 733 transitions. [2022-04-05 04:35:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 04:35:26,687 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:26,687 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:26,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:35:26,688 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:26,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:26,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1698510247, now seen corresponding path program 1 times [2022-04-05 04:35:26,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:26,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567512841] [2022-04-05 04:35:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:26,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 04:35:26,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:26,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567512841] [2022-04-05 04:35:26,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567512841] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:26,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:26,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:26,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622802389] [2022-04-05 04:35:26,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:26,780 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:26,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:26,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:26,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:26,781 INFO L87 Difference]: Start difference. First operand 483 states and 733 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:29,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:29,713 INFO L93 Difference]: Finished difference Result 554 states and 828 transitions. [2022-04-05 04:35:29,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:29,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-05 04:35:29,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:29,715 INFO L225 Difference]: With dead ends: 554 [2022-04-05 04:35:29,715 INFO L226 Difference]: Without dead ends: 554 [2022-04-05 04:35:29,715 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:29,716 INFO L913 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:29,716 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 416 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-05 04:35:29,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-04-05 04:35:29,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-04-05 04:35:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.506276150627615) internal successors, (720), 478 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 724 transitions. [2022-04-05 04:35:29,721 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 724 transitions. Word has length 147 [2022-04-05 04:35:29,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:29,721 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 724 transitions. [2022-04-05 04:35:29,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 724 transitions. [2022-04-05 04:35:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 04:35:29,722 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:29,722 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-04-05 04:35:29,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 04:35:29,722 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:29,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:29,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1339728551, now seen corresponding path program 1 times [2022-04-05 04:35:29,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:29,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575520522] [2022-04-05 04:35:29,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:29,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:35:29,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:29,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575520522] [2022-04-05 04:35:29,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575520522] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:29,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:29,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:29,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892375769] [2022-04-05 04:35:29,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:29,819 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:29,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:29,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:29,820 INFO L87 Difference]: Start difference. First operand 483 states and 724 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:32,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:34,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:34,990 INFO L93 Difference]: Finished difference Result 515 states and 770 transitions. [2022-04-05 04:35:34,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:34,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 04:35:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:34,992 INFO L225 Difference]: With dead ends: 515 [2022-04-05 04:35:34,992 INFO L226 Difference]: Without dead ends: 515 [2022-04-05 04:35:34,992 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:34,995 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 69 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:34,996 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 531 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 04:35:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-04-05 04:35:34,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 483. [2022-04-05 04:35:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.50418410041841) internal successors, (719), 478 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:35,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 723 transitions. [2022-04-05 04:35:35,001 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 723 transitions. Word has length 148 [2022-04-05 04:35:35,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:35,001 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 723 transitions. [2022-04-05 04:35:35,001 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:35,001 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 723 transitions. [2022-04-05 04:35:35,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 04:35:35,002 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:35,002 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:35,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 04:35:35,002 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:35,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash -380938011, now seen corresponding path program 1 times [2022-04-05 04:35:35,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:35,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570861369] [2022-04-05 04:35:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:35,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:35,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 04:35:35,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:35,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570861369] [2022-04-05 04:35:35,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570861369] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:35,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:35,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:35,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767825610] [2022-04-05 04:35:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:35,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:35,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:35,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:35,097 INFO L87 Difference]: Start difference. First operand 483 states and 723 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:36,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:38,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:39,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:39,716 INFO L93 Difference]: Finished difference Result 554 states and 820 transitions. [2022-04-05 04:35:39,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:39,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-05 04:35:39,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:39,718 INFO L225 Difference]: With dead ends: 554 [2022-04-05 04:35:39,718 INFO L226 Difference]: Without dead ends: 554 [2022-04-05 04:35:39,719 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:39,719 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 127 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:39,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 396 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 04:35:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-04-05 04:35:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-04-05 04:35:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4895397489539748) internal successors, (712), 478 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:39,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 716 transitions. [2022-04-05 04:35:39,724 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 716 transitions. Word has length 149 [2022-04-05 04:35:39,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:39,724 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 716 transitions. [2022-04-05 04:35:39,724 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:39,724 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 716 transitions. [2022-04-05 04:35:39,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-05 04:35:39,725 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:39,725 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:39,725 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 04:35:39,725 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:39,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:39,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1930272966, now seen corresponding path program 1 times [2022-04-05 04:35:39,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:39,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858469741] [2022-04-05 04:35:39,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:39,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:39,811 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:35:39,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:39,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858469741] [2022-04-05 04:35:39,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858469741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:39,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:39,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:39,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398849831] [2022-04-05 04:35:39,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:39,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:39,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:39,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:39,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:39,813 INFO L87 Difference]: Start difference. First operand 483 states and 716 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) [2022-04-05 04:35:41,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:43,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:44,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:46,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:47,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:47,293 INFO L93 Difference]: Finished difference Result 554 states and 813 transitions. [2022-04-05 04:35:47,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:47,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-04-05 04:35:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:47,294 INFO L225 Difference]: With dead ends: 554 [2022-04-05 04:35:47,295 INFO L226 Difference]: Without dead ends: 554 [2022-04-05 04:35:47,295 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:47,295 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 131 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:47,295 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 410 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 04:35:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-04-05 04:35:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-04-05 04:35:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4748953974895398) internal successors, (705), 478 states have internal predecessors, (705), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:47,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 709 transitions. [2022-04-05 04:35:47,300 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 709 transitions. Word has length 153 [2022-04-05 04:35:47,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:47,300 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 709 transitions. [2022-04-05 04:35:47,300 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:47,300 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 709 transitions. [2022-04-05 04:35:47,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-05 04:35:47,301 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:47,301 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:47,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 04:35:47,301 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:47,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:47,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1871052229, now seen corresponding path program 1 times [2022-04-05 04:35:47,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:47,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633150389] [2022-04-05 04:35:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:47,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:47,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 04:35:47,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:47,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633150389] [2022-04-05 04:35:47,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633150389] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:47,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:47,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:35:47,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467960063] [2022-04-05 04:35:47,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:47,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:35:47,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:47,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:35:47,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:35:47,430 INFO L87 Difference]: Start difference. First operand 483 states and 709 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 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) [2022-04-05 04:35:50,939 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 [] [2022-04-05 04:35:51,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:51,264 INFO L93 Difference]: Finished difference Result 935 states and 1367 transitions. [2022-04-05 04:35:51,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:35:51,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 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 153 [2022-04-05 04:35:51,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:51,267 INFO L225 Difference]: With dead ends: 935 [2022-04-05 04:35:51,267 INFO L226 Difference]: Without dead ends: 935 [2022-04-05 04:35:51,267 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:35:51,267 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:51,267 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 04:35:51,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-04-05 04:35:51,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2022-04-05 04:35:51,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.4676724137931034) internal successors, (1362), 928 states have internal predecessors, (1362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:51,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1366 transitions. [2022-04-05 04:35:51,300 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1366 transitions. Word has length 153 [2022-04-05 04:35:51,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:51,300 INFO L478 AbstractCegarLoop]: Abstraction has 933 states and 1366 transitions. [2022-04-05 04:35:51,301 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 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) [2022-04-05 04:35:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1366 transitions. [2022-04-05 04:35:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-05 04:35:51,302 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:51,302 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:51,302 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:35:51,302 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -794498820, now seen corresponding path program 1 times [2022-04-05 04:35:51,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:51,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149015901] [2022-04-05 04:35:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:51,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:51,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-05 04:35:51,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:51,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149015901] [2022-04-05 04:35:51,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149015901] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:51,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:51,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:35:51,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48264427] [2022-04-05 04:35:51,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:51,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:35:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:51,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:35:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:35:51,392 INFO L87 Difference]: Start difference. First operand 933 states and 1366 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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) [2022-04-05 04:35:52,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:54,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:55,397 INFO L93 Difference]: Finished difference Result 960 states and 1401 transitions. [2022-04-05 04:35:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:35:55,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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 153 [2022-04-05 04:35:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:55,400 INFO L225 Difference]: With dead ends: 960 [2022-04-05 04:35:55,400 INFO L226 Difference]: Without dead ends: 960 [2022-04-05 04:35:55,400 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:35:55,400 INFO L913 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:55,400 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:35:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-04-05 04:35:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-04-05 04:35:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.46282722513089) internal successors, (1397), 955 states have internal predecessors, (1397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:55,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1401 transitions. [2022-04-05 04:35:55,408 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1401 transitions. Word has length 153 [2022-04-05 04:35:55,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:55,408 INFO L478 AbstractCegarLoop]: Abstraction has 960 states and 1401 transitions. [2022-04-05 04:35:55,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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) [2022-04-05 04:35:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1401 transitions. [2022-04-05 04:35:55,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-05 04:35:55,410 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:55,410 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:55,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:35:55,410 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:55,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:55,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1135732029, now seen corresponding path program 1 times [2022-04-05 04:35:55,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:55,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476032417] [2022-04-05 04:35:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:55,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:55,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-04-05 04:35:55,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:55,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476032417] [2022-04-05 04:35:55,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476032417] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:55,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:55,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:35:55,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109537435] [2022-04-05 04:35:55,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:55,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:35:55,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:55,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:35:55,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:35:55,498 INFO L87 Difference]: Start difference. First operand 960 states and 1401 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:58,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:58,297 INFO L93 Difference]: Finished difference Result 962 states and 1403 transitions. [2022-04-05 04:35:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:35:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-04-05 04:35:58,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:58,299 INFO L225 Difference]: With dead ends: 962 [2022-04-05 04:35:58,299 INFO L226 Difference]: Without dead ends: 962 [2022-04-05 04:35:58,299 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:35:58,300 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:58,300 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-05 04:35:58,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-04-05 04:35:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-04-05 04:35:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4618599791013585) internal successors, (1399), 957 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:58,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1403 transitions. [2022-04-05 04:35:58,307 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1403 transitions. Word has length 153 [2022-04-05 04:35:58,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:58,307 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1403 transitions. [2022-04-05 04:35:58,307 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:35:58,308 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1403 transitions. [2022-04-05 04:35:58,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-05 04:35:58,309 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:58,309 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:35:58,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:35:58,309 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:58,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1936906933, now seen corresponding path program 1 times [2022-04-05 04:35:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:58,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546304453] [2022-04-05 04:35:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:58,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 04:35:58,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:58,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546304453] [2022-04-05 04:35:58,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546304453] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:58,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:58,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:35:58,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226250208] [2022-04-05 04:35:58,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:58,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:35:58,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:35:58,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:58,417 INFO L87 Difference]: Start difference. First operand 962 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:00,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:01,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:04,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:05,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:05,260 INFO L93 Difference]: Finished difference Result 1493 states and 2171 transitions. [2022-04-05 04:36:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 04:36:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-05 04:36:05,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:05,264 INFO L225 Difference]: With dead ends: 1493 [2022-04-05 04:36:05,264 INFO L226 Difference]: Without dead ends: 1493 [2022-04-05 04:36:05,264 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:36:05,264 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 92 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:05,264 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 835 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-04-05 04:36:05,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-04-05 04:36:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1475. [2022-04-05 04:36:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4625850340136055) internal successors, (2150), 1470 states have internal predecessors, (2150), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2154 transitions. [2022-04-05 04:36:05,277 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2154 transitions. Word has length 154 [2022-04-05 04:36:05,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:05,277 INFO L478 AbstractCegarLoop]: Abstraction has 1475 states and 2154 transitions. [2022-04-05 04:36:05,277 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:05,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2154 transitions. [2022-04-05 04:36:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-05 04:36:05,278 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:05,279 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:05,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:36:05,279 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:05,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1933578057, now seen corresponding path program 1 times [2022-04-05 04:36:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996515236] [2022-04-05 04:36:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:05,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:05,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:05,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:05,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996515236] [2022-04-05 04:36:05,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996515236] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:05,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:05,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:05,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805412675] [2022-04-05 04:36:05,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:05,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:05,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:05,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:05,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:05,365 INFO L87 Difference]: Start difference. First operand 1475 states and 2154 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:07,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:08,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:08,616 INFO L93 Difference]: Finished difference Result 1604 states and 2310 transitions. [2022-04-05 04:36:08,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:08,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-05 04:36:08,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:08,621 INFO L225 Difference]: With dead ends: 1604 [2022-04-05 04:36:08,621 INFO L226 Difference]: Without dead ends: 1604 [2022-04-05 04:36:08,622 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:08,623 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 130 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:08,623 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 406 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-05 04:36:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-04-05 04:36:08,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1475. [2022-04-05 04:36:08,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4469387755102041) internal successors, (2127), 1470 states have internal predecessors, (2127), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:08,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2131 transitions. [2022-04-05 04:36:08,651 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2131 transitions. Word has length 155 [2022-04-05 04:36:08,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:08,651 INFO L478 AbstractCegarLoop]: Abstraction has 1475 states and 2131 transitions. [2022-04-05 04:36:08,651 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:08,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2131 transitions. [2022-04-05 04:36:08,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-05 04:36:08,653 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:08,653 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:08,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:36:08,653 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:08,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:08,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-04-05 04:36:08,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:08,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486512580] [2022-04-05 04:36:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:08,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:08,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:08,807 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 04:36:08,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:08,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486512580] [2022-04-05 04:36:08,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486512580] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:08,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:08,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:08,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127307827] [2022-04-05 04:36:08,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:08,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:08,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:08,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:08,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:08,808 INFO L87 Difference]: Start difference. First operand 1475 states and 2131 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) [2022-04-05 04:36:10,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:12,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:14,397 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 [] [2022-04-05 04:36:15,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:15,327 INFO L93 Difference]: Finished difference Result 1855 states and 2660 transitions. [2022-04-05 04:36:15,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:15,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-04-05 04:36:15,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:15,332 INFO L225 Difference]: With dead ends: 1855 [2022-04-05 04:36:15,332 INFO L226 Difference]: Without dead ends: 1855 [2022-04-05 04:36:15,332 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:15,333 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 119 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:15,333 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 406 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-05 04:36:15,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2022-04-05 04:36:15,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1615. [2022-04-05 04:36:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1610 states have (on average 1.4409937888198758) internal successors, (2320), 1610 states have internal predecessors, (2320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2324 transitions. [2022-04-05 04:36:15,345 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2324 transitions. Word has length 156 [2022-04-05 04:36:15,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:15,345 INFO L478 AbstractCegarLoop]: Abstraction has 1615 states and 2324 transitions. [2022-04-05 04:36:15,345 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2324 transitions. [2022-04-05 04:36:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-05 04:36:15,347 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:15,347 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:15,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:36:15,347 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:15,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:15,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-04-05 04:36:15,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:15,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579983527] [2022-04-05 04:36:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:15,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 04:36:15,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:15,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579983527] [2022-04-05 04:36:15,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579983527] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:15,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:15,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:15,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920332768] [2022-04-05 04:36:15,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:15,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:15,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:15,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:15,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:15,432 INFO L87 Difference]: Start difference. First operand 1615 states and 2324 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:17,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:19,306 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 [] [2022-04-05 04:36:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:19,733 INFO L93 Difference]: Finished difference Result 1744 states and 2488 transitions. [2022-04-05 04:36:19,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:19,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-04-05 04:36:19,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:19,737 INFO L225 Difference]: With dead ends: 1744 [2022-04-05 04:36:19,737 INFO L226 Difference]: Without dead ends: 1744 [2022-04-05 04:36:19,737 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:19,737 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 118 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:19,737 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 04:36:19,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-04-05 04:36:19,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1613. [2022-04-05 04:36:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1608 states have (on average 1.4322139303482586) internal successors, (2303), 1608 states have internal predecessors, (2303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2307 transitions. [2022-04-05 04:36:19,749 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2307 transitions. Word has length 157 [2022-04-05 04:36:19,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:19,750 INFO L478 AbstractCegarLoop]: Abstraction has 1613 states and 2307 transitions. [2022-04-05 04:36:19,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2307 transitions. [2022-04-05 04:36:19,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-04-05 04:36:19,751 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:19,751 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:19,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:36:19,751 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:19,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1924593925, now seen corresponding path program 1 times [2022-04-05 04:36:19,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:19,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053910370] [2022-04-05 04:36:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:19,840 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:19,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:19,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053910370] [2022-04-05 04:36:19,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053910370] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:19,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:19,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:19,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944872492] [2022-04-05 04:36:19,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:19,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:19,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:19,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:19,841 INFO L87 Difference]: Start difference. First operand 1613 states and 2307 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:22,918 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 [] [2022-04-05 04:36:23,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:23,855 INFO L93 Difference]: Finished difference Result 1987 states and 2809 transitions. [2022-04-05 04:36:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:23,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-04-05 04:36:23,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:23,859 INFO L225 Difference]: With dead ends: 1987 [2022-04-05 04:36:23,859 INFO L226 Difference]: Without dead ends: 1987 [2022-04-05 04:36:23,859 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:23,860 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 127 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:23,860 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:36:23,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-04-05 04:36:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1717. [2022-04-05 04:36:23,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4158878504672898) internal successors, (2424), 1712 states have internal predecessors, (2424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2428 transitions. [2022-04-05 04:36:23,873 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2428 transitions. Word has length 160 [2022-04-05 04:36:23,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:23,873 INFO L478 AbstractCegarLoop]: Abstraction has 1717 states and 2428 transitions. [2022-04-05 04:36:23,873 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2428 transitions. [2022-04-05 04:36:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-04-05 04:36:23,875 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:23,875 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:23,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:36:23,875 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:23,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1323780289, now seen corresponding path program 1 times [2022-04-05 04:36:23,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:23,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451284006] [2022-04-05 04:36:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:23,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:23,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451284006] [2022-04-05 04:36:23,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451284006] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:23,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:23,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:23,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703089967] [2022-04-05 04:36:23,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:23,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:23,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:23,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:23,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:23,994 INFO L87 Difference]: Start difference. First operand 1717 states and 2428 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) [2022-04-05 04:36:26,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:28,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:28,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:28,731 INFO L93 Difference]: Finished difference Result 1846 states and 2580 transitions. [2022-04-05 04:36:28,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:28,731 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 161 [2022-04-05 04:36:28,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:28,735 INFO L225 Difference]: With dead ends: 1846 [2022-04-05 04:36:28,735 INFO L226 Difference]: Without dead ends: 1846 [2022-04-05 04:36:28,735 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:28,736 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 126 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:28,736 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 04:36:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-04-05 04:36:28,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1717. [2022-04-05 04:36:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4001168224299065) internal successors, (2397), 1712 states have internal predecessors, (2397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2401 transitions. [2022-04-05 04:36:28,754 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2401 transitions. Word has length 161 [2022-04-05 04:36:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:28,754 INFO L478 AbstractCegarLoop]: Abstraction has 1717 states and 2401 transitions. [2022-04-05 04:36:28,754 INFO L479 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) [2022-04-05 04:36:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2401 transitions. [2022-04-05 04:36:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-05 04:36:28,756 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:28,756 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:28,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:36:28,756 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1048598705, now seen corresponding path program 1 times [2022-04-05 04:36:28,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:28,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897906028] [2022-04-05 04:36:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:28,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:28,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:28,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897906028] [2022-04-05 04:36:28,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897906028] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:28,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:28,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:28,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153622319] [2022-04-05 04:36:28,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:28,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:28,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:28,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:28,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:28,866 INFO L87 Difference]: Start difference. First operand 1717 states and 2401 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:30,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:33,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:33,376 INFO L93 Difference]: Finished difference Result 1762 states and 2456 transitions. [2022-04-05 04:36:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:33,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-04-05 04:36:33,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:33,380 INFO L225 Difference]: With dead ends: 1762 [2022-04-05 04:36:33,380 INFO L226 Difference]: Without dead ends: 1762 [2022-04-05 04:36:33,380 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:33,380 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 37 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:33,380 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 563 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 04:36:33,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2022-04-05 04:36:33,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1717. [2022-04-05 04:36:33,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.3983644859813085) internal successors, (2394), 1712 states have internal predecessors, (2394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:33,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2398 transitions. [2022-04-05 04:36:33,395 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2398 transitions. Word has length 164 [2022-04-05 04:36:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:33,395 INFO L478 AbstractCegarLoop]: Abstraction has 1717 states and 2398 transitions. [2022-04-05 04:36:33,395 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:33,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2398 transitions. [2022-04-05 04:36:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-04-05 04:36:33,397 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:33,397 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:33,397 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:36:33,397 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:33,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1501818664, now seen corresponding path program 1 times [2022-04-05 04:36:33,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:33,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139226298] [2022-04-05 04:36:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:33,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:33,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 04:36:33,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:33,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139226298] [2022-04-05 04:36:33,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139226298] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:33,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:33,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923508060] [2022-04-05 04:36:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:33,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:33,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:33,488 INFO L87 Difference]: Start difference. First operand 1717 states and 2398 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) [2022-04-05 04:36:34,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:36,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:38,611 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 [] [2022-04-05 04:36:39,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:39,310 INFO L93 Difference]: Finished difference Result 1744 states and 2428 transitions. [2022-04-05 04:36:39,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:39,311 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 165 [2022-04-05 04:36:39,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:39,313 INFO L225 Difference]: With dead ends: 1744 [2022-04-05 04:36:39,313 INFO L226 Difference]: Without dead ends: 1744 [2022-04-05 04:36:39,314 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:39,314 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 28 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:39,314 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 563 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 04:36:39,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-04-05 04:36:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1706. [2022-04-05 04:36:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3991769547325104) internal successors, (2380), 1701 states have internal predecessors, (2380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2384 transitions. [2022-04-05 04:36:39,326 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2384 transitions. Word has length 165 [2022-04-05 04:36:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:39,326 INFO L478 AbstractCegarLoop]: Abstraction has 1706 states and 2384 transitions. [2022-04-05 04:36:39,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:39,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2384 transitions. [2022-04-05 04:36:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-05 04:36:39,328 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:39,328 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:39,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:36:39,328 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:39,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1494416010, now seen corresponding path program 1 times [2022-04-05 04:36:39,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:39,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394657097] [2022-04-05 04:36:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:39,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:39,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-04-05 04:36:39,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:39,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394657097] [2022-04-05 04:36:39,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394657097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:39,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:39,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:36:39,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603930558] [2022-04-05 04:36:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:39,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:36:39,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:39,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:36:39,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:36:39,430 INFO L87 Difference]: Start difference. First operand 1706 states and 2384 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:40,777 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 [] [2022-04-05 04:36:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:42,289 INFO L93 Difference]: Finished difference Result 1740 states and 2422 transitions. [2022-04-05 04:36:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:42,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-04-05 04:36:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:42,291 INFO L225 Difference]: With dead ends: 1740 [2022-04-05 04:36:42,291 INFO L226 Difference]: Without dead ends: 1740 [2022-04-05 04:36:42,291 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:36:42,292 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 22 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:42,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 600 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-05 04:36:42,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-04-05 04:36:42,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1706. [2022-04-05 04:36:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3968253968253967) internal successors, (2376), 1701 states have internal predecessors, (2376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:42,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2380 transitions. [2022-04-05 04:36:42,309 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2380 transitions. Word has length 167 [2022-04-05 04:36:42,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:42,310 INFO L478 AbstractCegarLoop]: Abstraction has 1706 states and 2380 transitions. [2022-04-05 04:36:42,310 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2380 transitions. [2022-04-05 04:36:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-05 04:36:42,312 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:42,312 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:42,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 04:36:42,312 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:42,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-04-05 04:36:42,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:42,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265200730] [2022-04-05 04:36:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:42,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-05 04:36:42,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:42,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265200730] [2022-04-05 04:36:42,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265200730] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:42,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:42,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:36:42,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369246649] [2022-04-05 04:36:42,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:42,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:36:42,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:42,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:36:42,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:36:42,683 INFO L87 Difference]: Start difference. First operand 1706 states and 2380 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:45,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:47,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:49,045 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 [] [2022-04-05 04:36:49,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:49,707 INFO L93 Difference]: Finished difference Result 1714 states and 2390 transitions. [2022-04-05 04:36:49,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:36:49,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-04-05 04:36:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:49,709 INFO L225 Difference]: With dead ends: 1714 [2022-04-05 04:36:49,709 INFO L226 Difference]: Without dead ends: 1706 [2022-04-05 04:36:49,710 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:36:49,710 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:49,710 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 891 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 04:36:49,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-04-05 04:36:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2022-04-05 04:36:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3962375073486184) internal successors, (2375), 1701 states have internal predecessors, (2375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:49,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2379 transitions. [2022-04-05 04:36:49,722 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2379 transitions. Word has length 174 [2022-04-05 04:36:49,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:49,722 INFO L478 AbstractCegarLoop]: Abstraction has 1706 states and 2379 transitions. [2022-04-05 04:36:49,722 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:49,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2379 transitions. [2022-04-05 04:36:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-05 04:36:49,723 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:49,724 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:36:49,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 04:36:49,724 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:49,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:49,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-04-05 04:36:49,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:49,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022773087] [2022-04-05 04:36:49,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:49,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 04:36:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:50,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022773087] [2022-04-05 04:36:50,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022773087] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:36:50,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188854342] [2022-04-05 04:36:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:50,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:36:50,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:36:50,626 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) [2022-04-05 04:36:50,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 04:36:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:51,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 217 conjunts are in the unsatisfiable core [2022-04-05 04:36:51,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:36:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-04-05 04:36:51,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:51,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10709 treesize of output 1662