/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.15.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:47:26,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:47:26,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:47:26,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:47:26,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:47:26,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:47:26,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:47:26,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:47:26,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:47:26,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:47:26,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:47:26,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:47:26,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:47:26,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:47:26,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:47:26,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:47:26,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:47:26,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:47:26,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:47:26,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:47:26,963 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:47:26,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:47:26,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:47:26,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:47:26,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:47:26,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:47:26,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:47:26,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:47:26,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:47:26,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:47:26,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:47:26,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:47:26,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:47:26,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:47:26,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:47:26,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:47:26,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:47:26,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:47:26,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:47:26,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:47:26,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:47:26,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:47:26,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:47:26,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:47:26,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:47:26,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:47:26,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:47:26,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:47:26,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:47:26,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:47:26,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:47:26,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:47:26,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:47:26,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:47:26,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:47:27,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:47:27,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:47:27,000 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:47:27,001 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:47:27,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:47:27,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:47:27,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:47:27,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:47:27,306 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:47:27,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-20 07:47:27,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08d5feb1/851568ae321740c8953dce2beac99745/FLAGbcb2fc53d [2022-03-20 07:47:27,912 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:47:27,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-20 07:47:27,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08d5feb1/851568ae321740c8953dce2beac99745/FLAGbcb2fc53d [2022-03-20 07:47:28,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08d5feb1/851568ae321740c8953dce2beac99745 [2022-03-20 07:47:28,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:47:28,343 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:47:28,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:47:28,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:47:28,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:47:28,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:28,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a7b1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28, skipping insertion in model container [2022-03-20 07:47:28,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:28,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:47:28,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:47:28,791 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.15.i.cil-2.c[75833,75846] [2022-03-20 07:47:28,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:47:28,822 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:47:28,921 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.15.i.cil-2.c[75833,75846] [2022-03-20 07:47:28,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:47:28,944 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:47:28,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28 WrapperNode [2022-03-20 07:47:28,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:47:28,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:47:28,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:47:28,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:47:28,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:28,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:28,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:28,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:29,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:29,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:29,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:29,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:47:29,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:47:29,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:47:29,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:47:29,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (1/1) ... [2022-03-20 07:47:29,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:47:29,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:47:29,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 07:47:29,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 07:47:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:47:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:47:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:47:29,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:47:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:47:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:47:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:47:29,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:47:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:47:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:47:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:47:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:47:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:47:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:47:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:47:29,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:47:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:47:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:47:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:47:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:47:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:47:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:47:29,351 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:47:29,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:47:30,151 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:47:30,692 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:47:30,693 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:47:30,708 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:47:30,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:47:30,715 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:47:30,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:47:30 BoogieIcfgContainer [2022-03-20 07:47:30,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:47:30,717 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:47:30,718 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:47:30,719 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:47:30,721 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:47:30" (1/1) ... [2022-03-20 07:47:30,723 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:47:30,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:47:30 BasicIcfg [2022-03-20 07:47:30,780 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:47:30,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:47:30,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:47:30,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:47:30,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:47:28" (1/4) ... [2022-03-20 07:47:30,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422224f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:47:30, skipping insertion in model container [2022-03-20 07:47:30,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:28" (2/4) ... [2022-03-20 07:47:30,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422224f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:47:30, skipping insertion in model container [2022-03-20 07:47:30,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:47:30" (3/4) ... [2022-03-20 07:47:30,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422224f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:47:30, skipping insertion in model container [2022-03-20 07:47:30,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:47:30" (4/4) ... [2022-03-20 07:47:30,789 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.cJordan [2022-03-20 07:47:30,793 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:47:30,793 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:47:30,827 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:47:30,832 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 07:47:30,832 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:47:30,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 07:47:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 07:47:30,856 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:30,856 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, 1] [2022-03-20 07:47:30,857 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:30,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:30,861 INFO L85 PathProgramCache]: Analyzing trace with hash -6184136, now seen corresponding path program 1 times [2022-03-20 07:47:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:30,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404583091] [2022-03-20 07:47:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:30,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:31,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:47:31,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:31,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404583091] [2022-03-20 07:47:31,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404583091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:31,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:31,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:31,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590337383] [2022-03-20 07:47:31,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:31,423 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:31,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:31,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:31,446 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:34,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:34,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:34,683 INFO L93 Difference]: Finished difference Result 195 states and 320 transitions. [2022-03-20 07:47:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:34,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-20 07:47:34,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:34,693 INFO L225 Difference]: With dead ends: 195 [2022-03-20 07:47:34,693 INFO L226 Difference]: Without dead ends: 174 [2022-03-20 07:47:34,694 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:47:34,697 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 34 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:34,698 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 631 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:47:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-20 07:47:34,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-03-20 07:47:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5657894736842106) internal successors, (238), 152 states have internal predecessors, (238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 242 transitions. [2022-03-20 07:47:34,735 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 242 transitions. Word has length 51 [2022-03-20 07:47:34,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:34,735 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 242 transitions. [2022-03-20 07:47:34,735 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 242 transitions. [2022-03-20 07:47:34,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 07:47:34,737 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:34,738 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, 1] [2022-03-20 07:47:34,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:47:34,738 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:34,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:34,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2076241697, now seen corresponding path program 1 times [2022-03-20 07:47:34,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:34,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688638967] [2022-03-20 07:47:34,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:34,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:34,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:47:35,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:35,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688638967] [2022-03-20 07:47:35,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688638967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:35,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:35,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:35,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750433130] [2022-03-20 07:47:35,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:35,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:35,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:35,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:35,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:35,017 INFO L87 Difference]: Start difference. First operand 157 states and 242 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) [2022-03-20 07:47:36,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:37,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:39,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:40,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:40,218 INFO L93 Difference]: Finished difference Result 174 states and 262 transitions. [2022-03-20 07:47:40,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:40,218 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 [2022-03-20 07:47:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:40,220 INFO L225 Difference]: With dead ends: 174 [2022-03-20 07:47:40,220 INFO L226 Difference]: Without dead ends: 174 [2022-03-20 07:47:40,220 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:47:40,222 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 24 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:40,222 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 507 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 07:47:40,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-20 07:47:40,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2022-03-20 07:47:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5592105263157894) internal successors, (237), 152 states have internal predecessors, (237), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 241 transitions. [2022-03-20 07:47:40,231 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 241 transitions. Word has length 64 [2022-03-20 07:47:40,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:40,231 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 241 transitions. [2022-03-20 07:47:40,232 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) [2022-03-20 07:47:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 241 transitions. [2022-03-20 07:47:40,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:40,233 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:40,234 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, 1] [2022-03-20 07:47:40,234 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:47:40,234 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:40,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2005235870, now seen corresponding path program 1 times [2022-03-20 07:47:40,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:40,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544713686] [2022-03-20 07:47:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:40,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:47:40,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:40,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544713686] [2022-03-20 07:47:40,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544713686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:40,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:40,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:40,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385820915] [2022-03-20 07:47:40,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:40,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:40,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:40,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:40,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:40,369 INFO L87 Difference]: Start difference. First operand 157 states and 241 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:43,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:45,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:45,742 INFO L93 Difference]: Finished difference Result 173 states and 260 transitions. [2022-03-20 07:47:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:45,742 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 [2022-03-20 07:47:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:45,744 INFO L225 Difference]: With dead ends: 173 [2022-03-20 07:47:45,744 INFO L226 Difference]: Without dead ends: 173 [2022-03-20 07:47:45,744 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:47:45,745 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 28 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:45,750 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 07:47:45,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-20 07:47:45,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2022-03-20 07:47:45,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5526315789473684) internal successors, (236), 152 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 240 transitions. [2022-03-20 07:47:45,759 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 240 transitions. Word has length 65 [2022-03-20 07:47:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:45,759 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 240 transitions. [2022-03-20 07:47:45,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 240 transitions. [2022-03-20 07:47:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:45,762 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:45,762 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, 1] [2022-03-20 07:47:45,762 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:47:45,762 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:45,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:45,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1327909762, now seen corresponding path program 1 times [2022-03-20 07:47:45,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:45,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131351653] [2022-03-20 07:47:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:45,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:45,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:47:45,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:45,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131351653] [2022-03-20 07:47:45,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131351653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:45,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:45,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:45,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424773866] [2022-03-20 07:47:45,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:45,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:45,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:45,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:45,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:45,912 INFO L87 Difference]: Start difference. First operand 157 states and 240 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:46,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:48,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:50,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:50,972 INFO L93 Difference]: Finished difference Result 173 states and 259 transitions. [2022-03-20 07:47:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:50,972 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 [2022-03-20 07:47:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:50,973 INFO L225 Difference]: With dead ends: 173 [2022-03-20 07:47:50,973 INFO L226 Difference]: Without dead ends: 173 [2022-03-20 07:47:50,974 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:47:50,974 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:50,975 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:47:50,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-20 07:47:50,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 157. [2022-03-20 07:47:50,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5460526315789473) internal successors, (235), 152 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:50,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 239 transitions. [2022-03-20 07:47:50,987 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 239 transitions. Word has length 65 [2022-03-20 07:47:50,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:50,987 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 239 transitions. [2022-03-20 07:47:50,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:50,987 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 239 transitions. [2022-03-20 07:47:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:50,989 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:50,989 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, 1] [2022-03-20 07:47:50,989 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:47:50,989 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:50,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:50,990 INFO L85 PathProgramCache]: Analyzing trace with hash 259801150, now seen corresponding path program 1 times [2022-03-20 07:47:50,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:50,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612257221] [2022-03-20 07:47:50,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:50,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:47:51,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:51,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612257221] [2022-03-20 07:47:51,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612257221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:51,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:51,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:51,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493952145] [2022-03-20 07:47:51,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:51,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:51,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:51,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:51,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:51,158 INFO L87 Difference]: Start difference. First operand 157 states and 239 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:52,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:55,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:56,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:56,263 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2022-03-20 07:47:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:56,263 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 [2022-03-20 07:47:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:56,264 INFO L225 Difference]: With dead ends: 171 [2022-03-20 07:47:56,264 INFO L226 Difference]: Without dead ends: 171 [2022-03-20 07:47:56,265 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:47:56,265 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 20 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:56,266 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 513 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 07:47:56,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-03-20 07:47:56,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 157. [2022-03-20 07:47:56,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5394736842105263) internal successors, (234), 152 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:56,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 238 transitions. [2022-03-20 07:47:56,271 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 238 transitions. Word has length 65 [2022-03-20 07:47:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:56,272 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 238 transitions. [2022-03-20 07:47:56,272 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:56,272 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 238 transitions. [2022-03-20 07:47:56,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:56,273 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:56,273 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, 1] [2022-03-20 07:47:56,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:47:56,274 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:56,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1672616674, now seen corresponding path program 1 times [2022-03-20 07:47:56,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:56,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77196656] [2022-03-20 07:47:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:56,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:56,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:47:56,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:56,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77196656] [2022-03-20 07:47:56,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77196656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:56,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:56,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:56,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085487887] [2022-03-20 07:47:56,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:56,399 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:56,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:56,400 INFO L87 Difference]: Start difference. First operand 157 states and 238 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:57,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:59,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:01,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:02,226 INFO L93 Difference]: Finished difference Result 170 states and 254 transitions. [2022-03-20 07:48:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:02,226 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 [2022-03-20 07:48:02,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:02,227 INFO L225 Difference]: With dead ends: 170 [2022-03-20 07:48:02,227 INFO L226 Difference]: Without dead ends: 170 [2022-03-20 07:48:02,228 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:02,228 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 18 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:02,229 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 515 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 07:48:02,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-20 07:48:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 157. [2022-03-20 07:48:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.5328947368421053) internal successors, (233), 152 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:02,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 237 transitions. [2022-03-20 07:48:02,234 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 237 transitions. Word has length 65 [2022-03-20 07:48:02,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:02,234 INFO L478 AbstractCegarLoop]: Abstraction has 157 states and 237 transitions. [2022-03-20 07:48:02,234 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:02,234 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 237 transitions. [2022-03-20 07:48:02,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 07:48:02,235 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:02,235 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, 1] [2022-03-20 07:48:02,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:48:02,236 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:02,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:02,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1494756417, now seen corresponding path program 1 times [2022-03-20 07:48:02,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:02,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857291483] [2022-03-20 07:48:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:02,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:02,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:02,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857291483] [2022-03-20 07:48:02,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857291483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:02,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:02,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:02,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461781442] [2022-03-20 07:48:02,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:02,359 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:02,360 INFO L87 Difference]: Start difference. First operand 157 states and 237 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:04,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:06,671 INFO L93 Difference]: Finished difference Result 277 states and 423 transitions. [2022-03-20 07:48:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:06,671 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 [2022-03-20 07:48:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:06,673 INFO L225 Difference]: With dead ends: 277 [2022-03-20 07:48:06,673 INFO L226 Difference]: Without dead ends: 277 [2022-03-20 07:48:06,673 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:06,674 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 152 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:06,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 07:48:06,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-20 07:48:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 170. [2022-03-20 07:48:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5272727272727273) internal successors, (252), 165 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 256 transitions. [2022-03-20 07:48:06,679 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 256 transitions. Word has length 66 [2022-03-20 07:48:06,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:06,679 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 256 transitions. [2022-03-20 07:48:06,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 256 transitions. [2022-03-20 07:48:06,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:48:06,680 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:06,681 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, 1] [2022-03-20 07:48:06,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:48:06,681 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:06,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:06,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1613548454, now seen corresponding path program 1 times [2022-03-20 07:48:06,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:06,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215508087] [2022-03-20 07:48:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:06,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:06,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:06,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:06,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215508087] [2022-03-20 07:48:06,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215508087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:06,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:06,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:06,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618788405] [2022-03-20 07:48:06,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:06,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:06,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:06,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:06,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:06,803 INFO L87 Difference]: Start difference. First operand 170 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:08,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:11,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:11,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:11,673 INFO L93 Difference]: Finished difference Result 277 states and 421 transitions. [2022-03-20 07:48:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:11,673 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 [2022-03-20 07:48:11,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:11,675 INFO L225 Difference]: With dead ends: 277 [2022-03-20 07:48:11,675 INFO L226 Difference]: Without dead ends: 277 [2022-03-20 07:48:11,675 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:11,676 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:11,676 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 07:48:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-20 07:48:11,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 171. [2022-03-20 07:48:11,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5180722891566265) internal successors, (252), 166 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:11,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 256 transitions. [2022-03-20 07:48:11,681 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 256 transitions. Word has length 67 [2022-03-20 07:48:11,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:11,681 INFO L478 AbstractCegarLoop]: Abstraction has 171 states and 256 transitions. [2022-03-20 07:48:11,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:11,682 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 256 transitions. [2022-03-20 07:48:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 07:48:11,682 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:11,682 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, 1] [2022-03-20 07:48:11,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:48:11,683 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:11,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:11,683 INFO L85 PathProgramCache]: Analyzing trace with hash -572975874, now seen corresponding path program 1 times [2022-03-20 07:48:11,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:11,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394712611] [2022-03-20 07:48:11,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:11,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:11,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:11,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:11,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394712611] [2022-03-20 07:48:11,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394712611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:11,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:11,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:11,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215261770] [2022-03-20 07:48:11,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:11,798 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:11,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:11,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:11,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:11,799 INFO L87 Difference]: Start difference. First operand 171 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:14,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:15,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:15,034 INFO L93 Difference]: Finished difference Result 277 states and 419 transitions. [2022-03-20 07:48:15,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:15,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 07:48:15,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:15,036 INFO L225 Difference]: With dead ends: 277 [2022-03-20 07:48:15,036 INFO L226 Difference]: Without dead ends: 277 [2022-03-20 07:48:15,036 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:15,037 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 148 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:15,037 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:48:15,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-20 07:48:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 172. [2022-03-20 07:48:15,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.5089820359281436) internal successors, (252), 167 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:15,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 256 transitions. [2022-03-20 07:48:15,042 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 256 transitions. Word has length 68 [2022-03-20 07:48:15,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:15,042 INFO L478 AbstractCegarLoop]: Abstraction has 172 states and 256 transitions. [2022-03-20 07:48:15,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:15,043 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 256 transitions. [2022-03-20 07:48:15,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 07:48:15,043 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:15,043 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, 1] [2022-03-20 07:48:15,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:48:15,044 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:15,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:15,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1695960111, now seen corresponding path program 1 times [2022-03-20 07:48:15,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:15,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030283368] [2022-03-20 07:48:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:15,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:15,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:15,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030283368] [2022-03-20 07:48:15,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030283368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:15,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:15,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965568961] [2022-03-20 07:48:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:15,158 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:15,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:15,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:15,159 INFO L87 Difference]: Start difference. First operand 172 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:17,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:19,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:20,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:20,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:20,555 INFO L93 Difference]: Finished difference Result 293 states and 441 transitions. [2022-03-20 07:48:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:20,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 07:48:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:20,557 INFO L225 Difference]: With dead ends: 293 [2022-03-20 07:48:20,557 INFO L226 Difference]: Without dead ends: 293 [2022-03-20 07:48:20,558 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:20,558 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 124 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:20,558 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 368 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 07:48:20,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-03-20 07:48:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 212. [2022-03-20 07:48:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 207 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 326 transitions. [2022-03-20 07:48:20,564 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 326 transitions. Word has length 68 [2022-03-20 07:48:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:20,564 INFO L478 AbstractCegarLoop]: Abstraction has 212 states and 326 transitions. [2022-03-20 07:48:20,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 326 transitions. [2022-03-20 07:48:20,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 07:48:20,565 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:20,565 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, 1, 1] [2022-03-20 07:48:20,566 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:48:20,566 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:20,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:20,566 INFO L85 PathProgramCache]: Analyzing trace with hash -749768695, now seen corresponding path program 1 times [2022-03-20 07:48:20,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:20,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813557897] [2022-03-20 07:48:20,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:20,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:20,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:20,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813557897] [2022-03-20 07:48:20,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813557897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:20,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:20,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:20,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735442244] [2022-03-20 07:48:20,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:20,677 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:20,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:20,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:20,678 INFO L87 Difference]: Start difference. First operand 212 states and 326 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:23,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:23,718 INFO L93 Difference]: Finished difference Result 317 states and 488 transitions. [2022-03-20 07:48:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:23,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 07:48:23,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:23,721 INFO L225 Difference]: With dead ends: 317 [2022-03-20 07:48:23,721 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 07:48:23,721 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:23,722 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:23,722 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 394 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 07:48:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 07:48:23,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 237. [2022-03-20 07:48:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5991379310344827) internal successors, (371), 232 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 375 transitions. [2022-03-20 07:48:23,728 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 375 transitions. Word has length 69 [2022-03-20 07:48:23,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:23,729 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 375 transitions. [2022-03-20 07:48:23,729 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:23,729 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 375 transitions. [2022-03-20 07:48:23,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-20 07:48:23,730 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:23,730 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, 1, 1] [2022-03-20 07:48:23,730 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:48:23,730 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:23,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:23,730 INFO L85 PathProgramCache]: Analyzing trace with hash -270896222, now seen corresponding path program 1 times [2022-03-20 07:48:23,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:23,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525606924] [2022-03-20 07:48:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:23,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:23,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:23,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525606924] [2022-03-20 07:48:23,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525606924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:23,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:23,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:23,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520684264] [2022-03-20 07:48:23,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:23,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:23,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:23,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:23,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:23,848 INFO L87 Difference]: Start difference. First operand 237 states and 375 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:24,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:26,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:26,852 INFO L93 Difference]: Finished difference Result 393 states and 622 transitions. [2022-03-20 07:48:26,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:26,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-20 07:48:26,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:26,854 INFO L225 Difference]: With dead ends: 393 [2022-03-20 07:48:26,854 INFO L226 Difference]: Without dead ends: 393 [2022-03-20 07:48:26,854 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:26,855 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:26,855 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 378 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 07:48:26,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-03-20 07:48:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 301. [2022-03-20 07:48:26,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.625) internal successors, (481), 296 states have internal predecessors, (481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:26,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 485 transitions. [2022-03-20 07:48:26,862 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 485 transitions. Word has length 97 [2022-03-20 07:48:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:26,862 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 485 transitions. [2022-03-20 07:48:26,862 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 485 transitions. [2022-03-20 07:48:26,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-20 07:48:26,863 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:26,863 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:26,864 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:48:26,864 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:26,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:26,864 INFO L85 PathProgramCache]: Analyzing trace with hash 856203158, now seen corresponding path program 1 times [2022-03-20 07:48:26,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:26,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466768686] [2022-03-20 07:48:26,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:26,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:27,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:27,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466768686] [2022-03-20 07:48:27,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466768686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:27,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:27,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062736278] [2022-03-20 07:48:27,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:27,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:27,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:27,015 INFO L87 Difference]: Start difference. First operand 301 states and 485 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:28,406 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 [] [2022-03-20 07:48:30,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:32,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:32,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:32,503 INFO L93 Difference]: Finished difference Result 421 states and 665 transitions. [2022-03-20 07:48:32,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:32,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-03-20 07:48:32,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:32,505 INFO L225 Difference]: With dead ends: 421 [2022-03-20 07:48:32,505 INFO L226 Difference]: Without dead ends: 421 [2022-03-20 07:48:32,506 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:32,506 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 125 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:32,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 366 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:48:32,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-03-20 07:48:32,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 338. [2022-03-20 07:48:32,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.6336336336336337) internal successors, (544), 333 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 548 transitions. [2022-03-20 07:48:32,514 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 548 transitions. Word has length 102 [2022-03-20 07:48:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:32,514 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 548 transitions. [2022-03-20 07:48:32,514 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:32,514 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 548 transitions. [2022-03-20 07:48:32,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-20 07:48:32,515 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:32,515 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:32,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:48:32,515 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:32,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1180104561, now seen corresponding path program 1 times [2022-03-20 07:48:32,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:32,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571436664] [2022-03-20 07:48:32,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:32,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:32,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-20 07:48:32,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:32,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571436664] [2022-03-20 07:48:32,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571436664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:32,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:32,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:32,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555032174] [2022-03-20 07:48:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:32,628 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:32,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:32,629 INFO L87 Difference]: Start difference. First operand 338 states and 548 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:33,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:35,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:37,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:37,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:37,610 INFO L93 Difference]: Finished difference Result 381 states and 610 transitions. [2022-03-20 07:48:37,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:37,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-20 07:48:37,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:37,637 INFO L225 Difference]: With dead ends: 381 [2022-03-20 07:48:37,637 INFO L226 Difference]: Without dead ends: 381 [2022-03-20 07:48:37,637 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:37,638 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 31 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:37,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 527 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:48:37,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-20 07:48:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 360. [2022-03-20 07:48:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.6309859154929578) internal successors, (579), 355 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:37,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 583 transitions. [2022-03-20 07:48:37,645 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 583 transitions. Word has length 103 [2022-03-20 07:48:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:37,645 INFO L478 AbstractCegarLoop]: Abstraction has 360 states and 583 transitions. [2022-03-20 07:48:37,645 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 583 transitions. [2022-03-20 07:48:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 07:48:37,646 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:37,646 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, 1, 1] [2022-03-20 07:48:37,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:48:37,647 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:37,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:37,651 INFO L85 PathProgramCache]: Analyzing trace with hash -259403225, now seen corresponding path program 1 times [2022-03-20 07:48:37,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:37,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504428321] [2022-03-20 07:48:37,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:37,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 07:48:37,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:37,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504428321] [2022-03-20 07:48:37,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504428321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:37,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:37,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145549726] [2022-03-20 07:48:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:37,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:37,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:37,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:37,767 INFO L87 Difference]: Start difference. First operand 360 states and 583 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:40,248 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 [] [2022-03-20 07:48:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:40,610 INFO L93 Difference]: Finished difference Result 381 states and 609 transitions. [2022-03-20 07:48:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:40,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-20 07:48:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:40,612 INFO L225 Difference]: With dead ends: 381 [2022-03-20 07:48:40,612 INFO L226 Difference]: Without dead ends: 381 [2022-03-20 07:48:40,613 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:40,613 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:40,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 527 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 07:48:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-03-20 07:48:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 360. [2022-03-20 07:48:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.628169014084507) internal successors, (578), 355 states have internal predecessors, (578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 582 transitions. [2022-03-20 07:48:40,620 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 582 transitions. Word has length 110 [2022-03-20 07:48:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:40,620 INFO L478 AbstractCegarLoop]: Abstraction has 360 states and 582 transitions. [2022-03-20 07:48:40,621 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 582 transitions. [2022-03-20 07:48:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-20 07:48:40,622 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:40,622 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:40,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:48:40,622 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:40,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:40,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1251152028, now seen corresponding path program 1 times [2022-03-20 07:48:40,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:40,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875868448] [2022-03-20 07:48:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:40,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 07:48:40,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:40,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875868448] [2022-03-20 07:48:40,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875868448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:40,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:40,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:40,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434849794] [2022-03-20 07:48:40,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:40,735 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:40,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:40,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:40,736 INFO L87 Difference]: Start difference. First operand 360 states and 582 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:43,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:44,405 INFO L93 Difference]: Finished difference Result 440 states and 689 transitions. [2022-03-20 07:48:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:44,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-20 07:48:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:44,408 INFO L225 Difference]: With dead ends: 440 [2022-03-20 07:48:44,408 INFO L226 Difference]: Without dead ends: 440 [2022-03-20 07:48:44,408 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:44,408 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:44,409 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 366 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:48:44,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-03-20 07:48:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 360. [2022-03-20 07:48:44,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.611267605633803) internal successors, (572), 355 states have internal predecessors, (572), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:44,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 576 transitions. [2022-03-20 07:48:44,415 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 576 transitions. Word has length 111 [2022-03-20 07:48:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:44,415 INFO L478 AbstractCegarLoop]: Abstraction has 360 states and 576 transitions. [2022-03-20 07:48:44,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 576 transitions. [2022-03-20 07:48:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 07:48:44,417 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:44,417 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:44,417 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:48:44,417 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:44,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:44,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1419682677, now seen corresponding path program 1 times [2022-03-20 07:48:44,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:44,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724857175] [2022-03-20 07:48:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:44,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:44,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:44,534 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-20 07:48:44,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:44,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724857175] [2022-03-20 07:48:44,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724857175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:44,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:44,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:44,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041764857] [2022-03-20 07:48:44,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:44,535 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:44,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:44,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:44,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:44,535 INFO L87 Difference]: Start difference. First operand 360 states and 576 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:45,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:47,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:48,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:49,211 INFO L93 Difference]: Finished difference Result 389 states and 615 transitions. [2022-03-20 07:48:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:49,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 07:48:49,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:49,216 INFO L225 Difference]: With dead ends: 389 [2022-03-20 07:48:49,216 INFO L226 Difference]: Without dead ends: 389 [2022-03-20 07:48:49,216 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:49,217 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:49,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 592 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:48:49,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-03-20 07:48:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 376. [2022-03-20 07:48:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.6037735849056605) internal successors, (595), 371 states have internal predecessors, (595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 599 transitions. [2022-03-20 07:48:49,226 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 599 transitions. Word has length 117 [2022-03-20 07:48:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:49,226 INFO L478 AbstractCegarLoop]: Abstraction has 376 states and 599 transitions. [2022-03-20 07:48:49,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 599 transitions. [2022-03-20 07:48:49,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 07:48:49,228 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:49,228 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:49,228 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:48:49,228 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:49,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:49,229 INFO L85 PathProgramCache]: Analyzing trace with hash -587358197, now seen corresponding path program 1 times [2022-03-20 07:48:49,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:49,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671851869] [2022-03-20 07:48:49,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:49,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 07:48:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:49,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671851869] [2022-03-20 07:48:49,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671851869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:49,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:49,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:49,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947252957] [2022-03-20 07:48:49,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:49,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:49,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:49,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:49,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:49,368 INFO L87 Difference]: Start difference. First operand 376 states and 599 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:50,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:51,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:53,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:53,198 INFO L93 Difference]: Finished difference Result 394 states and 622 transitions. [2022-03-20 07:48:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:53,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 07:48:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:53,200 INFO L225 Difference]: With dead ends: 394 [2022-03-20 07:48:53,200 INFO L226 Difference]: Without dead ends: 394 [2022-03-20 07:48:53,200 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:53,201 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 32 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:53,201 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 533 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 07:48:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-03-20 07:48:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 376. [2022-03-20 07:48:53,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.601078167115903) internal successors, (594), 371 states have internal predecessors, (594), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 598 transitions. [2022-03-20 07:48:53,208 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 598 transitions. Word has length 117 [2022-03-20 07:48:53,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:53,208 INFO L478 AbstractCegarLoop]: Abstraction has 376 states and 598 transitions. [2022-03-20 07:48:53,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:53,208 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 598 transitions. [2022-03-20 07:48:53,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 07:48:53,209 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:53,209 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:53,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:48:53,209 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:53,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:53,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1813192879, now seen corresponding path program 1 times [2022-03-20 07:48:53,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:53,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874334510] [2022-03-20 07:48:53,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:53,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-03-20 07:48:53,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:53,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874334510] [2022-03-20 07:48:53,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874334510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:53,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:53,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:48:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161778530] [2022-03-20 07:48:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:53,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:48:53,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:53,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:48:53,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:53,339 INFO L87 Difference]: Start difference. First operand 376 states and 598 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:56,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:58,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:59,789 INFO L93 Difference]: Finished difference Result 385 states and 609 transitions. [2022-03-20 07:48:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 07:48:59,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 07:48:59,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:59,791 INFO L225 Difference]: With dead ends: 385 [2022-03-20 07:48:59,791 INFO L226 Difference]: Without dead ends: 385 [2022-03-20 07:48:59,791 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:48:59,792 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 3 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:59,792 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 665 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 07:48:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-03-20 07:48:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2022-03-20 07:48:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5921052631578947) internal successors, (605), 380 states have internal predecessors, (605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 609 transitions. [2022-03-20 07:48:59,799 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 609 transitions. Word has length 118 [2022-03-20 07:48:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:59,799 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 609 transitions. [2022-03-20 07:48:59,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 609 transitions. [2022-03-20 07:48:59,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 07:48:59,800 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:59,800 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:59,800 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:48:59,801 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:59,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:59,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1814516943, now seen corresponding path program 1 times [2022-03-20 07:48:59,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:59,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823335889] [2022-03-20 07:48:59,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:59,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:59,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 07:48:59,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:59,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823335889] [2022-03-20 07:48:59,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823335889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:59,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:59,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:59,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265480838] [2022-03-20 07:48:59,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:59,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:59,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:59,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:59,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:59,946 INFO L87 Difference]: Start difference. First operand 385 states and 609 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:02,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:03,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:03,880 INFO L93 Difference]: Finished difference Result 402 states and 630 transitions. [2022-03-20 07:49:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:03,881 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 118 [2022-03-20 07:49:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:03,882 INFO L225 Difference]: With dead ends: 402 [2022-03-20 07:49:03,882 INFO L226 Difference]: Without dead ends: 402 [2022-03-20 07:49:03,882 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:03,883 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 36 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:03,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 535 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:49:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-20 07:49:03,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 385. [2022-03-20 07:49:03,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5894736842105264) internal successors, (604), 380 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 608 transitions. [2022-03-20 07:49:03,890 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 608 transitions. Word has length 118 [2022-03-20 07:49:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:03,890 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 608 transitions. [2022-03-20 07:49:03,890 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 608 transitions. [2022-03-20 07:49:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 07:49:03,892 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:03,892 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, 1, 1] [2022-03-20 07:49:03,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:49:03,892 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:03,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:03,892 INFO L85 PathProgramCache]: Analyzing trace with hash 265444301, now seen corresponding path program 1 times [2022-03-20 07:49:03,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:03,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27643705] [2022-03-20 07:49:03,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:03,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:04,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 07:49:04,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:04,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27643705] [2022-03-20 07:49:04,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27643705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:04,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:04,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:04,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907045741] [2022-03-20 07:49:04,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:04,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:04,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:04,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:04,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:04,015 INFO L87 Difference]: Start difference. First operand 385 states and 608 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:05,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:07,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:08,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:08,415 INFO L93 Difference]: Finished difference Result 392 states and 617 transitions. [2022-03-20 07:49:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:08,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 07:49:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:08,417 INFO L225 Difference]: With dead ends: 392 [2022-03-20 07:49:08,417 INFO L226 Difference]: Without dead ends: 392 [2022-03-20 07:49:08,417 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:08,417 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 30 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:08,417 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 549 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 07:49:08,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-03-20 07:49:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 385. [2022-03-20 07:49:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.5868421052631578) internal successors, (603), 380 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 607 transitions. [2022-03-20 07:49:08,424 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 607 transitions. Word has length 124 [2022-03-20 07:49:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:08,424 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 607 transitions. [2022-03-20 07:49:08,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 607 transitions. [2022-03-20 07:49:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-20 07:49:08,425 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:08,425 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, 1] [2022-03-20 07:49:08,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:49:08,426 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:08,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:08,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1400381102, now seen corresponding path program 1 times [2022-03-20 07:49:08,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:08,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866097651] [2022-03-20 07:49:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:08,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:08,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:49:08,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:08,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866097651] [2022-03-20 07:49:08,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866097651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:08,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:08,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:08,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596194195] [2022-03-20 07:49:08,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:08,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:08,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:08,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:08,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:08,566 INFO L87 Difference]: Start difference. First operand 385 states and 607 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:10,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:11,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:13,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:14,140 INFO L93 Difference]: Finished difference Result 474 states and 729 transitions. [2022-03-20 07:49:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:14,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-20 07:49:14,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:14,142 INFO L225 Difference]: With dead ends: 474 [2022-03-20 07:49:14,142 INFO L226 Difference]: Without dead ends: 474 [2022-03-20 07:49:14,143 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:14,143 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:14,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 394 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:49:14,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-03-20 07:49:14,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 385. [2022-03-20 07:49:14,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.581578947368421) internal successors, (601), 380 states have internal predecessors, (601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:14,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 605 transitions. [2022-03-20 07:49:14,150 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 605 transitions. Word has length 125 [2022-03-20 07:49:14,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:14,150 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 605 transitions. [2022-03-20 07:49:14,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:14,150 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 605 transitions. [2022-03-20 07:49:14,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 07:49:14,151 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:14,152 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:14,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:49:14,152 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:14,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1931032870, now seen corresponding path program 1 times [2022-03-20 07:49:14,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:14,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206936021] [2022-03-20 07:49:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:14,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:14,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:14,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206936021] [2022-03-20 07:49:14,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206936021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:14,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:14,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:14,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096496405] [2022-03-20 07:49:14,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:14,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:14,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:14,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:14,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:14,292 INFO L87 Difference]: Start difference. First operand 385 states and 605 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:17,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:19,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:20,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:20,785 INFO L93 Difference]: Finished difference Result 472 states and 722 transitions. [2022-03-20 07:49:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:20,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 07:49:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:20,789 INFO L225 Difference]: With dead ends: 472 [2022-03-20 07:49:20,789 INFO L226 Difference]: Without dead ends: 472 [2022-03-20 07:49:20,789 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:20,790 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 144 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:20,790 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 370 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 07:49:20,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-20 07:49:20,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 385. [2022-03-20 07:49:20,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 380 states have (on average 1.568421052631579) internal successors, (596), 380 states have internal predecessors, (596), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 600 transitions. [2022-03-20 07:49:20,796 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 600 transitions. Word has length 132 [2022-03-20 07:49:20,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:20,797 INFO L478 AbstractCegarLoop]: Abstraction has 385 states and 600 transitions. [2022-03-20 07:49:20,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 600 transitions. [2022-03-20 07:49:20,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 07:49:20,798 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:20,798 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, 1, 1] [2022-03-20 07:49:20,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:49:20,798 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:20,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:20,799 INFO L85 PathProgramCache]: Analyzing trace with hash -512603857, now seen corresponding path program 1 times [2022-03-20 07:49:20,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:20,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496102868] [2022-03-20 07:49:20,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:20,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:20,918 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:49:20,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:20,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496102868] [2022-03-20 07:49:20,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496102868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:20,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:20,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:20,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592753650] [2022-03-20 07:49:20,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:20,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:20,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:20,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:20,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:20,920 INFO L87 Difference]: Start difference. First operand 385 states and 600 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:22,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:23,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:25,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:26,079 INFO L93 Difference]: Finished difference Result 514 states and 788 transitions. [2022-03-20 07:49:26,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:26,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 07:49:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:26,081 INFO L225 Difference]: With dead ends: 514 [2022-03-20 07:49:26,081 INFO L226 Difference]: Without dead ends: 514 [2022-03-20 07:49:26,081 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:26,081 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 116 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:26,081 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 367 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 07:49:26,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-03-20 07:49:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 428. [2022-03-20 07:49:26,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.574468085106383) internal successors, (666), 423 states have internal predecessors, (666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:26,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 670 transitions. [2022-03-20 07:49:26,088 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 670 transitions. Word has length 133 [2022-03-20 07:49:26,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:26,088 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 670 transitions. [2022-03-20 07:49:26,088 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:26,089 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 670 transitions. [2022-03-20 07:49:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 07:49:26,090 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:26,090 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, 1, 1, 1] [2022-03-20 07:49:26,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:49:26,090 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:26,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash -796549232, now seen corresponding path program 1 times [2022-03-20 07:49:26,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:26,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270647400] [2022-03-20 07:49:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:26,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:26,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:49:26,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:26,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270647400] [2022-03-20 07:49:26,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270647400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:26,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:26,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:26,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683129934] [2022-03-20 07:49:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:26,215 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:26,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:26,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:26,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:26,215 INFO L87 Difference]: Start difference. First operand 428 states and 670 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:28,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:30,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:32,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:33,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:33,448 INFO L93 Difference]: Finished difference Result 517 states and 793 transitions. [2022-03-20 07:49:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:33,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 07:49:33,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:33,450 INFO L225 Difference]: With dead ends: 517 [2022-03-20 07:49:33,450 INFO L226 Difference]: Without dead ends: 515 [2022-03-20 07:49:33,450 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:33,451 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 117 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:33,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 394 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 07:49:33,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-03-20 07:49:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 430. [2022-03-20 07:49:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5741176470588236) internal successors, (669), 425 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 673 transitions. [2022-03-20 07:49:33,458 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 673 transitions. Word has length 134 [2022-03-20 07:49:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:33,458 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 673 transitions. [2022-03-20 07:49:33,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 673 transitions. [2022-03-20 07:49:33,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 07:49:33,459 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:33,459 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:33,459 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:49:33,460 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:33,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:33,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1510348940, now seen corresponding path program 1 times [2022-03-20 07:49:33,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:33,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453016848] [2022-03-20 07:49:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 07:49:33,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:33,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453016848] [2022-03-20 07:49:33,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453016848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:33,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:33,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:33,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326530901] [2022-03-20 07:49:33,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:33,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:33,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:33,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:33,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:33,581 INFO L87 Difference]: Start difference. First operand 430 states and 673 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:34,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:36,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:38,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:39,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:39,111 INFO L93 Difference]: Finished difference Result 505 states and 771 transitions. [2022-03-20 07:49:39,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:39,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 07:49:39,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:39,113 INFO L225 Difference]: With dead ends: 505 [2022-03-20 07:49:39,113 INFO L226 Difference]: Without dead ends: 505 [2022-03-20 07:49:39,113 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:39,113 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 147 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:39,114 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 398 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:49:39,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-03-20 07:49:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 430. [2022-03-20 07:49:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5576470588235294) internal successors, (662), 425 states have internal predecessors, (662), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 666 transitions. [2022-03-20 07:49:39,121 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 666 transitions. Word has length 146 [2022-03-20 07:49:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:39,121 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 666 transitions. [2022-03-20 07:49:39,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 666 transitions. [2022-03-20 07:49:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 07:49:39,122 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:39,122 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:39,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:49:39,122 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:39,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:39,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1478589548, now seen corresponding path program 1 times [2022-03-20 07:49:39,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:39,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121368756] [2022-03-20 07:49:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:39,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 07:49:39,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:39,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121368756] [2022-03-20 07:49:39,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121368756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:39,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:39,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:39,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886856830] [2022-03-20 07:49:39,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:39,271 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:39,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:39,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:39,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:39,273 INFO L87 Difference]: Start difference. First operand 430 states and 666 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:41,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:41,141 INFO L93 Difference]: Finished difference Result 495 states and 751 transitions. [2022-03-20 07:49:41,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:41,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 07:49:41,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:41,143 INFO L225 Difference]: With dead ends: 495 [2022-03-20 07:49:41,143 INFO L226 Difference]: Without dead ends: 495 [2022-03-20 07:49:41,143 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:41,143 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 138 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:41,144 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 07:49:41,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-03-20 07:49:41,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 430. [2022-03-20 07:49:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5411764705882354) internal successors, (655), 425 states have internal predecessors, (655), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 659 transitions. [2022-03-20 07:49:41,150 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 659 transitions. Word has length 146 [2022-03-20 07:49:41,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:41,151 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 659 transitions. [2022-03-20 07:49:41,151 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:41,151 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 659 transitions. [2022-03-20 07:49:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 07:49:41,152 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:41,152 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, 1, 1] [2022-03-20 07:49:41,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:49:41,152 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:41,153 INFO L85 PathProgramCache]: Analyzing trace with hash 24615192, now seen corresponding path program 1 times [2022-03-20 07:49:41,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:41,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127068724] [2022-03-20 07:49:41,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:41,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:41,279 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:41,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:41,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127068724] [2022-03-20 07:49:41,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127068724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:41,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:41,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:41,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303274442] [2022-03-20 07:49:41,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:41,280 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:41,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:41,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:41,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:41,281 INFO L87 Difference]: Start difference. First operand 430 states and 659 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) [2022-03-20 07:49:42,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:44,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:45,314 INFO L93 Difference]: Finished difference Result 505 states and 768 transitions. [2022-03-20 07:49:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:45,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 07:49:45,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:45,316 INFO L225 Difference]: With dead ends: 505 [2022-03-20 07:49:45,316 INFO L226 Difference]: Without dead ends: 505 [2022-03-20 07:49:45,316 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 [2022-03-20 07:49:45,317 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 65 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:45,317 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 523 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:49:45,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-03-20 07:49:45,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 462. [2022-03-20 07:49:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 457 states have (on average 1.5404814004376368) internal successors, (704), 457 states have internal predecessors, (704), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 708 transitions. [2022-03-20 07:49:45,323 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 708 transitions. Word has length 146 [2022-03-20 07:49:45,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:45,324 INFO L478 AbstractCegarLoop]: Abstraction has 462 states and 708 transitions. [2022-03-20 07:49:45,324 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) [2022-03-20 07:49:45,324 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 708 transitions. [2022-03-20 07:49:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 07:49:45,325 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:45,325 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, 1, 1] [2022-03-20 07:49:45,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:49:45,325 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:45,326 INFO L85 PathProgramCache]: Analyzing trace with hash -928586441, now seen corresponding path program 1 times [2022-03-20 07:49:45,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:45,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724664216] [2022-03-20 07:49:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:45,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:45,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:45,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724664216] [2022-03-20 07:49:45,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724664216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:45,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:45,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:45,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511563633] [2022-03-20 07:49:45,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:45,448 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:45,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:45,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:45,448 INFO L87 Difference]: Start difference. First operand 462 states and 708 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) [2022-03-20 07:49:47,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:50,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:51,071 INFO L93 Difference]: Finished difference Result 569 states and 860 transitions. [2022-03-20 07:49:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:51,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 07:49:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:51,073 INFO L225 Difference]: With dead ends: 569 [2022-03-20 07:49:51,073 INFO L226 Difference]: Without dead ends: 569 [2022-03-20 07:49:51,074 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:51,074 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 119 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:51,074 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 418 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:49:51,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-03-20 07:49:51,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 460. [2022-03-20 07:49:51,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.531868131868132) internal successors, (697), 455 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:51,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 701 transitions. [2022-03-20 07:49:51,081 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 701 transitions. Word has length 146 [2022-03-20 07:49:51,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:51,082 INFO L478 AbstractCegarLoop]: Abstraction has 460 states and 701 transitions. [2022-03-20 07:49:51,082 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) [2022-03-20 07:49:51,082 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 701 transitions. [2022-03-20 07:49:51,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 07:49:51,083 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:51,083 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, 1, 1] [2022-03-20 07:49:51,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:49:51,083 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:51,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:51,084 INFO L85 PathProgramCache]: Analyzing trace with hash 511559468, now seen corresponding path program 1 times [2022-03-20 07:49:51,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:51,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751858514] [2022-03-20 07:49:51,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:51,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:51,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:51,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:51,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751858514] [2022-03-20 07:49:51,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751858514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:51,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:51,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:51,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232399986] [2022-03-20 07:49:51,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:51,204 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:51,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:51,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:51,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:51,205 INFO L87 Difference]: Start difference. First operand 460 states and 701 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:53,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:55,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:56,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:56,700 INFO L93 Difference]: Finished difference Result 525 states and 787 transitions. [2022-03-20 07:49:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:56,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-20 07:49:56,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:56,702 INFO L225 Difference]: With dead ends: 525 [2022-03-20 07:49:56,702 INFO L226 Difference]: Without dead ends: 525 [2022-03-20 07:49:56,702 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:49:56,703 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 118 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:56,703 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 418 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:49:56,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-03-20 07:49:56,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 460. [2022-03-20 07:49:56,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.5186813186813186) internal successors, (691), 455 states have internal predecessors, (691), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:56,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 695 transitions. [2022-03-20 07:49:56,710 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 695 transitions. Word has length 147 [2022-03-20 07:49:56,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:56,710 INFO L478 AbstractCegarLoop]: Abstraction has 460 states and 695 transitions. [2022-03-20 07:49:56,710 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:56,710 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 695 transitions. [2022-03-20 07:49:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 07:49:56,711 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:56,711 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, 1] [2022-03-20 07:49:56,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:49:56,712 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash -70968412, now seen corresponding path program 1 times [2022-03-20 07:49:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:56,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393323272] [2022-03-20 07:49:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:56,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:56,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:56,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:56,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393323272] [2022-03-20 07:49:56,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393323272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:56,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:56,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:56,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855176639] [2022-03-20 07:49:56,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:56,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:56,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:56,843 INFO L87 Difference]: Start difference. First operand 460 states and 695 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:59,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:01,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:01,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:01,739 INFO L93 Difference]: Finished difference Result 567 states and 844 transitions. [2022-03-20 07:50:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:01,739 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 [2022-03-20 07:50:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:01,741 INFO L225 Difference]: With dead ends: 567 [2022-03-20 07:50:01,741 INFO L226 Difference]: Without dead ends: 567 [2022-03-20 07:50:01,741 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:50:01,742 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 120 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:01,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 418 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:50:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-20 07:50:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 488. [2022-03-20 07:50:01,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 483 states have (on average 1.5072463768115942) internal successors, (728), 483 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 732 transitions. [2022-03-20 07:50:01,749 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 732 transitions. Word has length 149 [2022-03-20 07:50:01,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:01,749 INFO L478 AbstractCegarLoop]: Abstraction has 488 states and 732 transitions. [2022-03-20 07:50:01,749 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:01,750 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 732 transitions. [2022-03-20 07:50:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 07:50:01,751 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:01,751 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, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:01,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:50:01,751 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:01,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1676992206, now seen corresponding path program 1 times [2022-03-20 07:50:01,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:01,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896547195] [2022-03-20 07:50:01,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:01,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:50:01,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:01,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896547195] [2022-03-20 07:50:01,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896547195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:01,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:01,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:01,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215434551] [2022-03-20 07:50:01,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:01,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:01,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:01,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:01,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:01,910 INFO L87 Difference]: Start difference. First operand 488 states and 732 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:03,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:04,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:05,913 INFO L93 Difference]: Finished difference Result 553 states and 817 transitions. [2022-03-20 07:50:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:05,914 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 150 [2022-03-20 07:50:05,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:05,915 INFO L225 Difference]: With dead ends: 553 [2022-03-20 07:50:05,915 INFO L226 Difference]: Without dead ends: 553 [2022-03-20 07:50:05,916 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:50:05,916 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 119 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:05,916 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 390 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:50:05,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-20 07:50:05,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 488. [2022-03-20 07:50:05,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 483 states have (on average 1.4927536231884058) internal successors, (721), 483 states have internal predecessors, (721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:05,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 725 transitions. [2022-03-20 07:50:05,923 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 725 transitions. Word has length 150 [2022-03-20 07:50:05,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:05,923 INFO L478 AbstractCegarLoop]: Abstraction has 488 states and 725 transitions. [2022-03-20 07:50:05,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 725 transitions. [2022-03-20 07:50:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-20 07:50:05,924 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:05,925 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] [2022-03-20 07:50:05,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:50:05,925 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:05,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:05,925 INFO L85 PathProgramCache]: Analyzing trace with hash -713601832, now seen corresponding path program 1 times [2022-03-20 07:50:05,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:05,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864463684] [2022-03-20 07:50:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:05,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:06,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 07:50:06,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:06,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864463684] [2022-03-20 07:50:06,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864463684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:06,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:06,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:06,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864945400] [2022-03-20 07:50:06,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:06,053 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:06,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:06,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:06,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:06,053 INFO L87 Difference]: Start difference. First operand 488 states and 725 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:08,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:11,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:11,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:11,637 INFO L93 Difference]: Finished difference Result 595 states and 875 transitions. [2022-03-20 07:50:11,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:11,637 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 [2022-03-20 07:50:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:11,639 INFO L225 Difference]: With dead ends: 595 [2022-03-20 07:50:11,639 INFO L226 Difference]: Without dead ends: 595 [2022-03-20 07:50:11,639 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:50:11,640 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 112 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:11,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 390 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:50:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-20 07:50:11,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 523. [2022-03-20 07:50:11,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 518 states have (on average 1.4864864864864864) internal successors, (770), 518 states have internal predecessors, (770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 774 transitions. [2022-03-20 07:50:11,646 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 774 transitions. Word has length 156 [2022-03-20 07:50:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:11,647 INFO L478 AbstractCegarLoop]: Abstraction has 523 states and 774 transitions. [2022-03-20 07:50:11,647 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 774 transitions. [2022-03-20 07:50:11,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 07:50:11,648 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:11,648 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] [2022-03-20 07:50:11,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:50:11,649 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:11,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:11,649 INFO L85 PathProgramCache]: Analyzing trace with hash 741405720, now seen corresponding path program 1 times [2022-03-20 07:50:11,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:11,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163798064] [2022-03-20 07:50:11,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:11,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 07:50:11,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:11,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163798064] [2022-03-20 07:50:11,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163798064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:11,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:11,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:11,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727089010] [2022-03-20 07:50:11,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:11,772 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:11,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:11,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:11,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:11,773 INFO L87 Difference]: Start difference. First operand 523 states and 774 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) [2022-03-20 07:50:13,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:14,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:15,269 INFO L93 Difference]: Finished difference Result 588 states and 862 transitions. [2022-03-20 07:50:15,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:15,269 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 [2022-03-20 07:50:15,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:15,271 INFO L225 Difference]: With dead ends: 588 [2022-03-20 07:50:15,271 INFO L226 Difference]: Without dead ends: 588 [2022-03-20 07:50:15,271 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:50:15,271 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 111 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:15,271 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 390 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 07:50:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-03-20 07:50:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 523. [2022-03-20 07:50:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 518 states have (on average 1.4787644787644787) internal successors, (766), 518 states have internal predecessors, (766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 770 transitions. [2022-03-20 07:50:15,278 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 770 transitions. Word has length 157 [2022-03-20 07:50:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:15,278 INFO L478 AbstractCegarLoop]: Abstraction has 523 states and 770 transitions. [2022-03-20 07:50:15,278 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) [2022-03-20 07:50:15,278 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 770 transitions. [2022-03-20 07:50:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-20 07:50:15,280 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:15,280 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] [2022-03-20 07:50:15,280 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:50:15,280 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:15,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:15,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2102470359, now seen corresponding path program 1 times [2022-03-20 07:50:15,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:15,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264852590] [2022-03-20 07:50:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:15,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:15,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 07:50:15,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:15,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264852590] [2022-03-20 07:50:15,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264852590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:15,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:15,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738378185] [2022-03-20 07:50:15,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:15,420 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:15,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:15,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:15,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:15,421 INFO L87 Difference]: Start difference. First operand 523 states and 770 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:17,366 INFO L93 Difference]: Finished difference Result 1012 states and 1488 transitions. [2022-03-20 07:50:17,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:17,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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 174 [2022-03-20 07:50:17,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:17,369 INFO L225 Difference]: With dead ends: 1012 [2022-03-20 07:50:17,369 INFO L226 Difference]: Without dead ends: 1012 [2022-03-20 07:50:17,369 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:17,370 INFO L913 BasicCegarLoop]: 384 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:17,370 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 578 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 07:50:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-03-20 07:50:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2022-03-20 07:50:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1007 states have (on average 1.4736842105263157) internal successors, (1484), 1007 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:17,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1488 transitions. [2022-03-20 07:50:17,381 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1488 transitions. Word has length 174 [2022-03-20 07:50:17,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:17,381 INFO L478 AbstractCegarLoop]: Abstraction has 1012 states and 1488 transitions. [2022-03-20 07:50:17,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:17,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1488 transitions. [2022-03-20 07:50:17,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-20 07:50:17,383 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:17,383 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, 1] [2022-03-20 07:50:17,383 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:50:17,383 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:17,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:17,384 INFO L85 PathProgramCache]: Analyzing trace with hash 689207752, now seen corresponding path program 1 times [2022-03-20 07:50:17,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:17,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259714815] [2022-03-20 07:50:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:17,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:50:17,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:17,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259714815] [2022-03-20 07:50:17,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259714815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:17,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:17,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:17,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864805003] [2022-03-20 07:50:17,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:17,528 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:17,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:17,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:17,529 INFO L87 Difference]: Start difference. First operand 1012 states and 1488 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:19,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:21,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:21,923 INFO L93 Difference]: Finished difference Result 1468 states and 2157 transitions. [2022-03-20 07:50:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:21,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-20 07:50:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:21,927 INFO L225 Difference]: With dead ends: 1468 [2022-03-20 07:50:21,927 INFO L226 Difference]: Without dead ends: 1468 [2022-03-20 07:50:21,927 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:21,927 INFO L913 BasicCegarLoop]: 385 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:21,927 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 579 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 07:50:21,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2022-03-20 07:50:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1468. [2022-03-20 07:50:21,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1463 states have (on average 1.4716336295283663) internal successors, (2153), 1463 states have internal predecessors, (2153), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:21,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2157 transitions. [2022-03-20 07:50:21,943 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2157 transitions. Word has length 175 [2022-03-20 07:50:21,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:21,943 INFO L478 AbstractCegarLoop]: Abstraction has 1468 states and 2157 transitions. [2022-03-20 07:50:21,943 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:21,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2157 transitions. [2022-03-20 07:50:21,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-20 07:50:21,945 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:21,945 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, 1, 1] [2022-03-20 07:50:21,945 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:50:21,946 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:21,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:21,946 INFO L85 PathProgramCache]: Analyzing trace with hash -340760717, now seen corresponding path program 1 times [2022-03-20 07:50:21,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:21,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511944901] [2022-03-20 07:50:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:21,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:22,064 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 07:50:22,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:22,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511944901] [2022-03-20 07:50:22,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511944901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:22,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:22,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:22,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402455073] [2022-03-20 07:50:22,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:22,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:22,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:22,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:22,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:22,066 INFO L87 Difference]: Start difference. First operand 1468 states and 2157 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:24,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:25,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:26,144 INFO L93 Difference]: Finished difference Result 1915 states and 2815 transitions. [2022-03-20 07:50:26,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:26,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-20 07:50:26,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:26,153 INFO L225 Difference]: With dead ends: 1915 [2022-03-20 07:50:26,153 INFO L226 Difference]: Without dead ends: 1915 [2022-03-20 07:50:26,153 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:26,153 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:26,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 459 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 317 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 07:50:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-03-20 07:50:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1915. [2022-03-20 07:50:26,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1910 states have (on average 1.4717277486910996) internal successors, (2811), 1910 states have internal predecessors, (2811), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2815 transitions. [2022-03-20 07:50:26,173 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2815 transitions. Word has length 176 [2022-03-20 07:50:26,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:26,173 INFO L478 AbstractCegarLoop]: Abstraction has 1915 states and 2815 transitions. [2022-03-20 07:50:26,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:26,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2815 transitions. [2022-03-20 07:50:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-20 07:50:26,177 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:26,177 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, 1, 1] [2022-03-20 07:50:26,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 07:50:26,177 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2144302994, now seen corresponding path program 1 times [2022-03-20 07:50:26,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:26,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256137155] [2022-03-20 07:50:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-20 07:50:26,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:26,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256137155] [2022-03-20 07:50:26,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256137155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:26,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:26,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005784320] [2022-03-20 07:50:26,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:26,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:26,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:26,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:26,307 INFO L87 Difference]: Start difference. First operand 1915 states and 2815 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:27,492 INFO L93 Difference]: Finished difference Result 1942 states and 2850 transitions. [2022-03-20 07:50:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:27,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 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 176 [2022-03-20 07:50:27,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:27,497 INFO L225 Difference]: With dead ends: 1942 [2022-03-20 07:50:27,497 INFO L226 Difference]: Without dead ends: 1942 [2022-03-20 07:50:27,497 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:27,498 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:27,498 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 425 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-20 07:50:27,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2022-03-20 07:50:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1942. [2022-03-20 07:50:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1937 states have (on average 1.469282395456892) internal successors, (2846), 1937 states have internal predecessors, (2846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2850 transitions. [2022-03-20 07:50:27,514 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2850 transitions. Word has length 176 [2022-03-20 07:50:27,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:27,514 INFO L478 AbstractCegarLoop]: Abstraction has 1942 states and 2850 transitions. [2022-03-20 07:50:27,514 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2850 transitions. [2022-03-20 07:50:27,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-20 07:50:27,517 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:27,518 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, 1, 1] [2022-03-20 07:50:27,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 07:50:27,518 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:27,518 INFO L85 PathProgramCache]: Analyzing trace with hash -464764367, now seen corresponding path program 1 times [2022-03-20 07:50:27,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:27,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98778935] [2022-03-20 07:50:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:27,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-20 07:50:27,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:27,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98778935] [2022-03-20 07:50:27,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98778935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:27,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:27,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:27,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114168812] [2022-03-20 07:50:27,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:27,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:27,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:27,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:27,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:27,642 INFO L87 Difference]: Start difference. First operand 1942 states and 2850 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:30,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:30,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:30,497 INFO L93 Difference]: Finished difference Result 1944 states and 2852 transitions. [2022-03-20 07:50:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:30,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 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 176 [2022-03-20 07:50:30,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:30,501 INFO L225 Difference]: With dead ends: 1944 [2022-03-20 07:50:30,501 INFO L226 Difference]: Without dead ends: 1944 [2022-03-20 07:50:30,501 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:30,502 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:30,502 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 404 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 07:50:30,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-03-20 07:50:30,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2022-03-20 07:50:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1939 states have (on average 1.4687983496647756) internal successors, (2848), 1939 states have internal predecessors, (2848), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2852 transitions. [2022-03-20 07:50:30,521 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2852 transitions. Word has length 176 [2022-03-20 07:50:30,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:30,521 INFO L478 AbstractCegarLoop]: Abstraction has 1944 states and 2852 transitions. [2022-03-20 07:50:30,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2852 transitions. [2022-03-20 07:50:30,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-20 07:50:30,525 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:30,525 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:30,525 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 07:50:30,525 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:30,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:30,525 INFO L85 PathProgramCache]: Analyzing trace with hash 533126362, now seen corresponding path program 1 times [2022-03-20 07:50:30,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:30,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349871816] [2022-03-20 07:50:30,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:30,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-20 07:50:30,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:30,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349871816] [2022-03-20 07:50:30,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349871816] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:50:30,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726617110] [2022-03-20 07:50:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:30,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:50:30,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:50:30,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:50:30,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 07:50:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:31,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 07:50:31,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:50:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-03-20 07:50:31,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 07:50:31,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726617110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:31,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 07:50:31,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 07:50:31,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254208903] [2022-03-20 07:50:31,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:31,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 07:50:31,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:31,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 07:50:31,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:50:31,976 INFO L87 Difference]: Start difference. First operand 1944 states and 2852 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:32,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:32,016 INFO L93 Difference]: Finished difference Result 2439 states and 3585 transitions. [2022-03-20 07:50:32,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 07:50:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-03-20 07:50:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:32,026 INFO L225 Difference]: With dead ends: 2439 [2022-03-20 07:50:32,026 INFO L226 Difference]: Without dead ends: 2439 [2022-03-20 07:50:32,027 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:50:32,027 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:32,027 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 386 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 07:50:32,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2022-03-20 07:50:32,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2022-03-20 07:50:32,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2434 states have (on average 1.471240755957272) internal successors, (3581), 2434 states have internal predecessors, (3581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3585 transitions. [2022-03-20 07:50:32,050 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3585 transitions. Word has length 299 [2022-03-20 07:50:32,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:32,051 INFO L478 AbstractCegarLoop]: Abstraction has 2439 states and 3585 transitions. [2022-03-20 07:50:32,051 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:32,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3585 transitions. [2022-03-20 07:50:32,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-03-20 07:50:32,056 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:32,056 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:32,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 07:50:32,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-03-20 07:50:32,272 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1869481902, now seen corresponding path program 1 times [2022-03-20 07:50:32,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:32,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864447304] [2022-03-20 07:50:32,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:32,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 1019 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-03-20 07:50:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:32,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864447304] [2022-03-20 07:50:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864447304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:32,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:32,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:32,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217678401] [2022-03-20 07:50:32,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:32,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:32,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:32,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:32,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:32,530 INFO L87 Difference]: Start difference. First operand 2439 states and 3585 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:33,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:34,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:37,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:37,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:37,854 INFO L93 Difference]: Finished difference Result 2749 states and 4004 transitions. [2022-03-20 07:50:37,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:37,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-03-20 07:50:37,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:37,862 INFO L225 Difference]: With dead ends: 2749 [2022-03-20 07:50:37,862 INFO L226 Difference]: Without dead ends: 2749 [2022-03-20 07:50:37,862 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:50:37,863 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 37 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:37,863 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 627 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 07:50:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2022-03-20 07:50:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2648. [2022-03-20 07:50:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2643 states have (on average 1.4661369655694287) internal successors, (3875), 2643 states have internal predecessors, (3875), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3879 transitions. [2022-03-20 07:50:37,906 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3879 transitions. Word has length 426 [2022-03-20 07:50:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:37,906 INFO L478 AbstractCegarLoop]: Abstraction has 2648 states and 3879 transitions. [2022-03-20 07:50:37,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3879 transitions. [2022-03-20 07:50:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-03-20 07:50:37,912 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:37,912 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:37,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 07:50:37,912 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:37,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:37,913 INFO L85 PathProgramCache]: Analyzing trace with hash 190440595, now seen corresponding path program 1 times [2022-03-20 07:50:37,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:37,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707841460] [2022-03-20 07:50:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:38,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 750 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-03-20 07:50:38,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:38,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707841460] [2022-03-20 07:50:38,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707841460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:38,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:38,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:38,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162281068] [2022-03-20 07:50:38,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:38,208 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:38,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:38,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:38,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:38,209 INFO L87 Difference]: Start difference. First operand 2648 states and 3879 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:39,967 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 [] [2022-03-20 07:50:41,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:42,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:42,795 INFO L93 Difference]: Finished difference Result 3185 states and 4672 transitions. [2022-03-20 07:50:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:42,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 426 [2022-03-20 07:50:42,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:42,801 INFO L225 Difference]: With dead ends: 3185 [2022-03-20 07:50:42,802 INFO L226 Difference]: Without dead ends: 3185 [2022-03-20 07:50:42,802 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:42,802 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 138 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:42,802 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 382 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 07:50:42,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2022-03-20 07:50:42,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3185. [2022-03-20 07:50:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 3180 states have (on average 1.4679245283018867) internal successors, (4668), 3180 states have internal predecessors, (4668), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4672 transitions. [2022-03-20 07:50:42,864 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4672 transitions. Word has length 426 [2022-03-20 07:50:42,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:42,864 INFO L478 AbstractCegarLoop]: Abstraction has 3185 states and 4672 transitions. [2022-03-20 07:50:42,864 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4672 transitions. [2022-03-20 07:50:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-03-20 07:50:42,871 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:42,871 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:42,871 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 07:50:42,871 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:42,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:42,872 INFO L85 PathProgramCache]: Analyzing trace with hash 323931843, now seen corresponding path program 1 times [2022-03-20 07:50:42,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:42,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091336165] [2022-03-20 07:50:42,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:42,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-03-20 07:50:43,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:43,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091336165] [2022-03-20 07:50:43,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091336165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:43,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:43,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:43,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739483390] [2022-03-20 07:50:43,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:43,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:43,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:43,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:43,183 INFO L87 Difference]: Start difference. First operand 3185 states and 4672 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:45,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:47,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:49,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:49,684 INFO L93 Difference]: Finished difference Result 3717 states and 5450 transitions. [2022-03-20 07:50:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:49,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 427 [2022-03-20 07:50:49,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:49,692 INFO L225 Difference]: With dead ends: 3717 [2022-03-20 07:50:49,692 INFO L226 Difference]: Without dead ends: 3717 [2022-03-20 07:50:49,692 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:49,693 INFO L913 BasicCegarLoop]: 390 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:49,693 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 445 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-20 07:50:49,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-03-20 07:50:49,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3717. [2022-03-20 07:50:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3712 states have (on average 1.4671336206896552) internal successors, (5446), 3712 states have internal predecessors, (5446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:49,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5450 transitions. [2022-03-20 07:50:49,728 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5450 transitions. Word has length 427 [2022-03-20 07:50:49,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:49,729 INFO L478 AbstractCegarLoop]: Abstraction has 3717 states and 5450 transitions. [2022-03-20 07:50:49,729 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5450 transitions. [2022-03-20 07:50:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-03-20 07:50:49,735 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:49,736 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:49,736 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 07:50:49,736 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash -71724402, now seen corresponding path program 1 times [2022-03-20 07:50:49,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:49,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127824461] [2022-03-20 07:50:49,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:49,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-03-20 07:50:49,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:49,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127824461] [2022-03-20 07:50:49,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127824461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:49,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:49,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:49,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548082413] [2022-03-20 07:50:49,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:49,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:49,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:49,978 INFO L87 Difference]: Start difference. First operand 3717 states and 5450 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:51,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:53,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:54,912 INFO L93 Difference]: Finished difference Result 4217 states and 6180 transitions. [2022-03-20 07:50:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:54,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-03-20 07:50:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:54,919 INFO L225 Difference]: With dead ends: 4217 [2022-03-20 07:50:54,919 INFO L226 Difference]: Without dead ends: 4217 [2022-03-20 07:50:54,919 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:54,920 INFO L913 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:54,920 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:50:54,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4217 states. [2022-03-20 07:50:54,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4217 to 4217. [2022-03-20 07:50:54,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 4212 states have (on average 1.466286799620133) internal successors, (6176), 4212 states have internal predecessors, (6176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6180 transitions. [2022-03-20 07:50:54,959 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6180 transitions. Word has length 428 [2022-03-20 07:50:54,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:54,959 INFO L478 AbstractCegarLoop]: Abstraction has 4217 states and 6180 transitions. [2022-03-20 07:50:54,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:54,959 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6180 transitions. [2022-03-20 07:50:54,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-03-20 07:50:54,980 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:54,980 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:54,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 07:50:54,980 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2121350020, now seen corresponding path program 1 times [2022-03-20 07:50:54,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:54,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648776656] [2022-03-20 07:50:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:55,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 1642 trivial. 0 not checked. [2022-03-20 07:50:55,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:55,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648776656] [2022-03-20 07:50:55,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648776656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:55,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:55,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:55,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889185783] [2022-03-20 07:50:55,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:55,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:55,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:55,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:55,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:55,319 INFO L87 Difference]: Start difference. First operand 4217 states and 6180 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:57,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:57,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:57,746 INFO L93 Difference]: Finished difference Result 4378 states and 6371 transitions. [2022-03-20 07:50:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:57,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 555 [2022-03-20 07:50:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:57,753 INFO L225 Difference]: With dead ends: 4378 [2022-03-20 07:50:57,753 INFO L226 Difference]: Without dead ends: 4378 [2022-03-20 07:50:57,753 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:50:57,753 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 51 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:57,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 625 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:50:57,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2022-03-20 07:50:57,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 4217. [2022-03-20 07:50:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 4212 states have (on average 1.4643874643874644) internal successors, (6168), 4212 states have internal predecessors, (6168), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6172 transitions. [2022-03-20 07:50:57,794 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6172 transitions. Word has length 555 [2022-03-20 07:50:57,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:57,794 INFO L478 AbstractCegarLoop]: Abstraction has 4217 states and 6172 transitions. [2022-03-20 07:50:57,795 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6172 transitions. [2022-03-20 07:50:57,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-03-20 07:50:57,802 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:57,802 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:57,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 07:50:57,802 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:57,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:57,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1699591293, now seen corresponding path program 1 times [2022-03-20 07:50:57,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:57,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248394398] [2022-03-20 07:50:57,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:57,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:58,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:58,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1138 proven. 189 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-03-20 07:50:58,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:58,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248394398] [2022-03-20 07:50:58,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248394398] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:50:58,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23117356] [2022-03-20 07:50:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:58,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:50:58,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:50:58,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:50:58,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 07:50:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:59,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 07:50:59,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:51:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2773 backedges. 1072 proven. 0 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2022-03-20 07:51:00,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 07:51:00,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23117356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:00,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 07:51:00,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 07:51:00,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795145740] [2022-03-20 07:51:00,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:00,025 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 07:51:00,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:00,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 07:51:00,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:51:00,025 INFO L87 Difference]: Start difference. First operand 4217 states and 6172 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:00,078 INFO L93 Difference]: Finished difference Result 4754 states and 6967 transitions. [2022-03-20 07:51:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 07:51:00,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 555 [2022-03-20 07:51:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:00,085 INFO L225 Difference]: With dead ends: 4754 [2022-03-20 07:51:00,086 INFO L226 Difference]: Without dead ends: 4754 [2022-03-20 07:51:00,086 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:51:00,086 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 138 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:00,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 382 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 07:51:00,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2022-03-20 07:51:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 4754. [2022-03-20 07:51:00,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4754 states, 4749 states have (on average 1.4662034112444726) internal successors, (6963), 4749 states have internal predecessors, (6963), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4754 states to 4754 states and 6967 transitions. [2022-03-20 07:51:00,129 INFO L78 Accepts]: Start accepts. Automaton has 4754 states and 6967 transitions. Word has length 555 [2022-03-20 07:51:00,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:00,129 INFO L478 AbstractCegarLoop]: Abstraction has 4754 states and 6967 transitions. [2022-03-20 07:51:00,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:00,129 INFO L276 IsEmpty]: Start isEmpty. Operand 4754 states and 6967 transitions. [2022-03-20 07:51:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-03-20 07:51:00,137 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:00,137 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:51:00,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 07:51:00,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-03-20 07:51:00,351 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1694333736, now seen corresponding path program 1 times [2022-03-20 07:51:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:00,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504842845] [2022-03-20 07:51:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:00,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:00,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 823 proven. 0 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2022-03-20 07:51:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:00,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504842845] [2022-03-20 07:51:00,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504842845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:00,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:51:00,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:51:00,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437261630] [2022-03-20 07:51:00,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:00,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:51:00,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:00,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:51:00,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:51:00,636 INFO L87 Difference]: Start difference. First operand 4754 states and 6967 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:03,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:03,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:03,592 INFO L93 Difference]: Finished difference Result 5255 states and 7697 transitions. [2022-03-20 07:51:03,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:51:03,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-03-20 07:51:03,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:03,601 INFO L225 Difference]: With dead ends: 5255 [2022-03-20 07:51:03,601 INFO L226 Difference]: Without dead ends: 5255 [2022-03-20 07:51:03,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:51:03,602 INFO L913 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:03,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 07:51:03,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2022-03-20 07:51:03,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 5255. [2022-03-20 07:51:03,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5250 states have (on average 1.4653333333333334) internal successors, (7693), 5250 states have internal predecessors, (7693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 7697 transitions. [2022-03-20 07:51:03,649 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 7697 transitions. Word has length 558 [2022-03-20 07:51:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:03,650 INFO L478 AbstractCegarLoop]: Abstraction has 5255 states and 7697 transitions. [2022-03-20 07:51:03,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 7697 transitions. [2022-03-20 07:51:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-03-20 07:51:03,658 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:03,658 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:51:03,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 07:51:03,658 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:03,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1575939639, now seen corresponding path program 1 times [2022-03-20 07:51:03,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:03,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143568170] [2022-03-20 07:51:03,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:03,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1601 proven. 119 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-03-20 07:51:04,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:04,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143568170] [2022-03-20 07:51:04,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143568170] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:51:04,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092904231] [2022-03-20 07:51:04,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:04,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:51:04,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:51:04,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:51:04,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 07:51:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:05,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2515 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-20 07:51:05,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:51:05,596 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:51:05,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:51:05,715 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 07:51:05,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 07:51:05,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 07:51:06,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 07:51:06,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 07:51:06,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 07:51:06,251 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-20 07:51:06,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-03-20 07:51:06,343 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 07:51:06,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-03-20 07:51:06,622 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:51:06,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 07:51:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1394 proven. 201 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-03-20 07:51:06,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:51:07,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-03-20 07:51:07,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-03-20 07:51:10,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 172 [2022-03-20 07:51:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1392 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2022-03-20 07:51:11,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092904231] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:51:11,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:51:11,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 13] total 22 [2022-03-20 07:51:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213339603] [2022-03-20 07:51:11,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:11,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:51:11,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:51:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=399, Unknown=1, NotChecked=0, Total=462 [2022-03-20 07:51:11,244 INFO L87 Difference]: Start difference. First operand 5255 states and 7697 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:12,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:14,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:23,105 INFO L93 Difference]: Finished difference Result 8224 states and 11996 transitions. [2022-03-20 07:51:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:51:23,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-03-20 07:51:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:23,117 INFO L225 Difference]: With dead ends: 8224 [2022-03-20 07:51:23,117 INFO L226 Difference]: Without dead ends: 8224 [2022-03-20 07:51:23,118 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1138 GetRequests, 1114 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=91, Invalid=556, Unknown=3, NotChecked=0, Total=650 [2022-03-20 07:51:23,118 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 424 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 119 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:23,118 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 940 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 522 Invalid, 1 Unknown, 260 Unchecked, 3.7s Time] [2022-03-20 07:51:23,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8224 states. [2022-03-20 07:51:23,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8224 to 7107. [2022-03-20 07:51:23,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.4760630808223036) internal successors, (10483), 7102 states have internal predecessors, (10483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10487 transitions. [2022-03-20 07:51:23,197 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10487 transitions. Word has length 558 [2022-03-20 07:51:23,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:23,197 INFO L478 AbstractCegarLoop]: Abstraction has 7107 states and 10487 transitions. [2022-03-20 07:51:23,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10487 transitions. [2022-03-20 07:51:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-03-20 07:51:23,208 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:23,208 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:51:23,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-20 07:51:23,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:51:23,422 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:23,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:23,423 INFO L85 PathProgramCache]: Analyzing trace with hash -793315798, now seen corresponding path program 1 times [2022-03-20 07:51:23,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:23,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502081244] [2022-03-20 07:51:23,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:23,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2790 backedges. 1461 proven. 0 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2022-03-20 07:51:23,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:23,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502081244] [2022-03-20 07:51:23,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502081244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:23,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:51:23,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:51:23,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858228295] [2022-03-20 07:51:23,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:23,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:51:23,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:23,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:51:23,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:51:23,723 INFO L87 Difference]: Start difference. First operand 7107 states and 10487 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:24,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:26,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:28,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:30,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:30,987 INFO L93 Difference]: Finished difference Result 7369 states and 10795 transitions. [2022-03-20 07:51:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:51:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-03-20 07:51:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:30,995 INFO L225 Difference]: With dead ends: 7369 [2022-03-20 07:51:30,995 INFO L226 Difference]: Without dead ends: 7369 [2022-03-20 07:51:30,995 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:51:30,996 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 48 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:30,996 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 623 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 07:51:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7369 states. [2022-03-20 07:51:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7369 to 7107. [2022-03-20 07:51:31,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 1.4739509997183893) internal successors, (10468), 7102 states have internal predecessors, (10468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:31,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 10472 transitions. [2022-03-20 07:51:31,072 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 10472 transitions. Word has length 561 [2022-03-20 07:51:31,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:31,072 INFO L478 AbstractCegarLoop]: Abstraction has 7107 states and 10472 transitions. [2022-03-20 07:51:31,072 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:31,072 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 10472 transitions. [2022-03-20 07:51:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-03-20 07:51:31,133 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:31,133 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:51:31,133 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 07:51:31,134 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:31,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:31,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1432119467, now seen corresponding path program 1 times [2022-03-20 07:51:31,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:31,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095216282] [2022-03-20 07:51:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:31,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2022-03-20 07:51:31,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:31,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095216282] [2022-03-20 07:51:31,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095216282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:31,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:51:31,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:51:31,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518817049] [2022-03-20 07:51:31,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:31,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:51:31,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:31,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:51:31,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:51:31,388 INFO L87 Difference]: Start difference. First operand 7107 states and 10472 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:32,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:34,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:36,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:37,123 INFO L93 Difference]: Finished difference Result 7359 states and 10775 transitions. [2022-03-20 07:51:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:51:37,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-03-20 07:51:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:37,137 INFO L225 Difference]: With dead ends: 7359 [2022-03-20 07:51:37,137 INFO L226 Difference]: Without dead ends: 7279 [2022-03-20 07:51:37,138 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:51:37,138 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 33 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:37,138 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 621 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 07:51:37,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7279 states. [2022-03-20 07:51:37,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7279 to 7037. [2022-03-20 07:51:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 7032 states have (on average 1.4765358361774743) internal successors, (10383), 7032 states have internal predecessors, (10383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 10387 transitions. [2022-03-20 07:51:37,231 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 10387 transitions. Word has length 561 [2022-03-20 07:51:37,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:37,232 INFO L478 AbstractCegarLoop]: Abstraction has 7037 states and 10387 transitions. [2022-03-20 07:51:37,232 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:37,232 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 10387 transitions. [2022-03-20 07:51:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2022-03-20 07:51:37,243 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:37,243 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:51:37,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 07:51:37,244 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:37,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1234805621, now seen corresponding path program 1 times [2022-03-20 07:51:37,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:37,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577746345] [2022-03-20 07:51:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:37,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:37,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:37,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3305 backedges. 1748 proven. 81 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2022-03-20 07:51:37,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:37,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577746345] [2022-03-20 07:51:37,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577746345] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:51:37,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867596347] [2022-03-20 07:51:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:37,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:51:37,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:51:37,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:51:37,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 07:51:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:38,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2724 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 07:51:38,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:51:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3305 backedges. 2255 proven. 0 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2022-03-20 07:51:39,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 07:51:39,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867596347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:39,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 07:51:39,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 07:51:39,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930992118] [2022-03-20 07:51:39,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:39,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 07:51:39,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:39,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 07:51:39,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:51:39,579 INFO L87 Difference]: Start difference. First operand 7037 states and 10387 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:39,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:39,633 INFO L93 Difference]: Finished difference Result 7928 states and 11710 transitions. [2022-03-20 07:51:39,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 07:51:39,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 603 [2022-03-20 07:51:39,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:39,644 INFO L225 Difference]: With dead ends: 7928 [2022-03-20 07:51:39,644 INFO L226 Difference]: Without dead ends: 7928 [2022-03-20 07:51:39,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 07:51:39,645 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 134 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:39,645 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 388 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 07:51:39,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2022-03-20 07:51:39,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 7928. [2022-03-20 07:51:39,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7923 states have (on average 1.4774706550549035) internal successors, (11706), 7923 states have internal predecessors, (11706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 11710 transitions. [2022-03-20 07:51:39,725 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 11710 transitions. Word has length 603 [2022-03-20 07:51:39,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:39,725 INFO L478 AbstractCegarLoop]: Abstraction has 7928 states and 11710 transitions. [2022-03-20 07:51:39,726 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 11710 transitions. [2022-03-20 07:51:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-03-20 07:51:39,736 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:39,736 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:51:39,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 07:51:39,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:51:39,963 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:39,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:39,964 INFO L85 PathProgramCache]: Analyzing trace with hash 829998474, now seen corresponding path program 1 times [2022-03-20 07:51:39,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:39,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564972814] [2022-03-20 07:51:39,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:39,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 1681 proven. 0 refuted. 0 times theorem prover too weak. 1848 trivial. 0 not checked. [2022-03-20 07:51:40,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:40,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564972814] [2022-03-20 07:51:40,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564972814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:40,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:51:40,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:51:40,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483829191] [2022-03-20 07:51:40,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:40,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:51:40,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:40,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:51:40,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:51:40,264 INFO L87 Difference]: Start difference. First operand 7928 states and 11710 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:41,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:43,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:45,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:47,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:47,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:47,642 INFO L93 Difference]: Finished difference Result 8202 states and 12038 transitions. [2022-03-20 07:51:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:51:47,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 624 [2022-03-20 07:51:47,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:47,654 INFO L225 Difference]: With dead ends: 8202 [2022-03-20 07:51:47,654 INFO L226 Difference]: Without dead ends: 8202 [2022-03-20 07:51:47,654 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:51:47,656 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 43 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:47,657 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 619 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 07:51:47,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8202 states. [2022-03-20 07:51:47,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8202 to 7928. [2022-03-20 07:51:47,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7928 states, 7923 states have (on average 1.4753250031553704) internal successors, (11689), 7923 states have internal predecessors, (11689), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7928 states to 7928 states and 11693 transitions. [2022-03-20 07:51:47,768 INFO L78 Accepts]: Start accepts. Automaton has 7928 states and 11693 transitions. Word has length 624 [2022-03-20 07:51:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:47,769 INFO L478 AbstractCegarLoop]: Abstraction has 7928 states and 11693 transitions. [2022-03-20 07:51:47,769 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 7928 states and 11693 transitions. [2022-03-20 07:51:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-03-20 07:51:47,778 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:47,779 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:51:47,779 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 07:51:47,779 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:47,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:47,780 INFO L85 PathProgramCache]: Analyzing trace with hash 241649034, now seen corresponding path program 1 times [2022-03-20 07:51:47,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:47,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585898550] [2022-03-20 07:51:47,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:47,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:48,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1931 proven. 46 refuted. 0 times theorem prover too weak. 1609 trivial. 0 not checked. [2022-03-20 07:51:48,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:48,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585898550] [2022-03-20 07:51:48,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585898550] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:51:48,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082406622] [2022-03-20 07:51:48,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:48,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:51:48,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:51:48,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:51:48,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 07:51:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:49,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 2782 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 07:51:49,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:51:49,543 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:51:49,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:51:49,588 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:51:49,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:51:49,655 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 07:51:49,804 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:51:49,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:51:49,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:51:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1926 proven. 126 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2022-03-20 07:51:50,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:51:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3586 backedges. 1947 proven. 0 refuted. 0 times theorem prover too weak. 1639 trivial. 0 not checked. [2022-03-20 07:51:51,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082406622] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:51:51,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:51:51,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-20 07:51:51,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988070460] [2022-03-20 07:51:51,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:51,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:51:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:51,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:51:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-20 07:51:51,128 INFO L87 Difference]: Start difference. First operand 7928 states and 11693 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:52,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:52,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:52,498 INFO L93 Difference]: Finished difference Result 9599 states and 13996 transitions. [2022-03-20 07:51:52,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:51:52,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 624 [2022-03-20 07:51:52,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:52,507 INFO L225 Difference]: With dead ends: 9599 [2022-03-20 07:51:52,508 INFO L226 Difference]: Without dead ends: 9599 [2022-03-20 07:51:52,508 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1258 GetRequests, 1248 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-20 07:51:52,508 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 105 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:52,508 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 538 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-20 07:51:52,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2022-03-20 07:51:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 8600. [2022-03-20 07:51:52,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8595 states have (on average 1.4706224549156486) internal successors, (12640), 8595 states have internal predecessors, (12640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12644 transitions. [2022-03-20 07:51:52,591 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12644 transitions. Word has length 624 [2022-03-20 07:51:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:52,591 INFO L478 AbstractCegarLoop]: Abstraction has 8600 states and 12644 transitions. [2022-03-20 07:51:52,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12644 transitions. [2022-03-20 07:51:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-03-20 07:51:52,602 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:52,603 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:51:52,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-20 07:51:52,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:51:52,826 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:52,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash 253724586, now seen corresponding path program 1 times [2022-03-20 07:51:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:52,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770688112] [2022-03-20 07:51:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:53,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3568 backedges. 1701 proven. 0 refuted. 0 times theorem prover too weak. 1867 trivial. 0 not checked. [2022-03-20 07:51:53,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:53,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770688112] [2022-03-20 07:51:53,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770688112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:53,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:51:53,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:51:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653838305] [2022-03-20 07:51:53,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:53,128 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:51:53,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:51:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:51:53,128 INFO L87 Difference]: Start difference. First operand 8600 states and 12644 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:55,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:51:55,510 INFO L93 Difference]: Finished difference Result 8806 states and 12877 transitions. [2022-03-20 07:51:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:51:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 627 [2022-03-20 07:51:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:51:55,519 INFO L225 Difference]: With dead ends: 8806 [2022-03-20 07:51:55,519 INFO L226 Difference]: Without dead ends: 8806 [2022-03-20 07:51:55,519 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:51:55,520 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 37 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:51:55,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 611 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:51:55,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8806 states. [2022-03-20 07:51:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8806 to 8600. [2022-03-20 07:51:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8595 states have (on average 1.4686445607911576) internal successors, (12623), 8595 states have internal predecessors, (12623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12627 transitions. [2022-03-20 07:51:55,595 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12627 transitions. Word has length 627 [2022-03-20 07:51:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:51:55,595 INFO L478 AbstractCegarLoop]: Abstraction has 8600 states and 12627 transitions. [2022-03-20 07:51:55,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:55,596 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12627 transitions. [2022-03-20 07:51:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-03-20 07:51:55,604 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:51:55,604 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:51:55,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 07:51:55,605 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:51:55,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:51:55,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1484021239, now seen corresponding path program 1 times [2022-03-20 07:51:55,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:51:55,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628925635] [2022-03-20 07:51:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:51:55,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:51:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:55,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:51:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:51:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3601 backedges. 1836 proven. 0 refuted. 0 times theorem prover too weak. 1765 trivial. 0 not checked. [2022-03-20 07:51:56,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:51:56,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628925635] [2022-03-20 07:51:56,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628925635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:51:56,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:51:56,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:51:56,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97691011] [2022-03-20 07:51:56,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:51:56,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:51:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:51:56,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:51:56,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:51:56,002 INFO L87 Difference]: Start difference. First operand 8600 states and 12627 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:51:57,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:51:59,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:01,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:52:01,623 INFO L93 Difference]: Finished difference Result 9282 states and 13601 transitions. [2022-03-20 07:52:01,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:52:01,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 627 [2022-03-20 07:52:01,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:52:01,630 INFO L225 Difference]: With dead ends: 9282 [2022-03-20 07:52:01,631 INFO L226 Difference]: Without dead ends: 9282 [2022-03-20 07:52:01,631 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:52:01,631 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 29 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:52:01,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 613 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:52:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9282 states. [2022-03-20 07:52:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9282 to 9042. [2022-03-20 07:52:01,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9037 states have (on average 1.4701781564678544) internal successors, (13286), 9037 states have internal predecessors, (13286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:52:01,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 13290 transitions. [2022-03-20 07:52:01,713 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 13290 transitions. Word has length 627 [2022-03-20 07:52:01,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:52:01,713 INFO L478 AbstractCegarLoop]: Abstraction has 9042 states and 13290 transitions. [2022-03-20 07:52:01,713 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:52:01,713 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 13290 transitions. [2022-03-20 07:52:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-20 07:52:01,770 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:52:01,770 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:52:01,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 07:52:01,770 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:52:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:52:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash 269092640, now seen corresponding path program 1 times [2022-03-20 07:52:01,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:52:01,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133817309] [2022-03-20 07:52:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:52:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:52:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:52:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:52:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:52:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 2111 proven. 95 refuted. 0 times theorem prover too weak. 1689 trivial. 0 not checked. [2022-03-20 07:52:02,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:52:02,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133817309] [2022-03-20 07:52:02,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133817309] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:52:02,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543168113] [2022-03-20 07:52:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:52:02,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:52:02,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:52:02,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:52:02,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 07:52:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:52:03,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 2791 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-20 07:52:03,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:52:03,609 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:52:03,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:52:03,658 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:52:03,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:52:03,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 07:52:03,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 07:52:03,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 07:52:03,779 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 07:52:03,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-20 07:52:03,837 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 07:52:03,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-03-20 07:52:03,910 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:52:03,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-03-20 07:52:06,020 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:52:06,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 07:52:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1914 proven. 68 refuted. 0 times theorem prover too weak. 1913 trivial. 0 not checked. [2022-03-20 07:52:06,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:52:07,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-20 07:52:07,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 07:52:09,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2022-03-20 07:52:09,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-03-20 07:52:09,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-03-20 07:52:09,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1937 proven. 27 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2022-03-20 07:52:09,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543168113] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 07:52:09,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 07:52:09,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 13 [2022-03-20 07:52:09,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796137252] [2022-03-20 07:52:09,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 07:52:09,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 07:52:09,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:52:09,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 07:52:09,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=116, Unknown=1, NotChecked=0, Total=156 [2022-03-20 07:52:09,231 INFO L87 Difference]: Start difference. First operand 9042 states and 13290 transitions. Second operand has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:52:10,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:11,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:13,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:15,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:17,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:19,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:52:29,411 INFO L93 Difference]: Finished difference Result 18129 states and 26319 transitions. [2022-03-20 07:52:29,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-20 07:52:29,411 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-20 07:52:29,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:52:29,426 INFO L225 Difference]: With dead ends: 18129 [2022-03-20 07:52:29,426 INFO L226 Difference]: Without dead ends: 18129 [2022-03-20 07:52:29,427 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1296 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=192, Invalid=559, Unknown=5, NotChecked=0, Total=756 [2022-03-20 07:52:29,427 INFO L913 BasicCegarLoop]: 350 mSDtfsCounter, 791 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 221 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 493 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:52:29,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 2039 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2165 Invalid, 3 Unknown, 493 Unchecked, 12.0s Time] [2022-03-20 07:52:29,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18129 states. [2022-03-20 07:52:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18129 to 9984. [2022-03-20 07:52:29,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9984 states, 9979 states have (on average 1.4702876039683335) internal successors, (14672), 9979 states have internal predecessors, (14672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:52:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9984 states to 9984 states and 14676 transitions. [2022-03-20 07:52:29,527 INFO L78 Accepts]: Start accepts. Automaton has 9984 states and 14676 transitions. Word has length 645 [2022-03-20 07:52:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:52:29,527 INFO L478 AbstractCegarLoop]: Abstraction has 9984 states and 14676 transitions. [2022-03-20 07:52:29,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 19.46153846153846) internal successors, (253), 12 states have internal predecessors, (253), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:52:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 9984 states and 14676 transitions. [2022-03-20 07:52:29,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-20 07:52:29,539 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:52:29,540 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:52:29,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 07:52:29,755 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:52:29,755 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:52:29,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:52:29,756 INFO L85 PathProgramCache]: Analyzing trace with hash -360571007, now seen corresponding path program 1 times [2022-03-20 07:52:29,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:52:29,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120629795] [2022-03-20 07:52:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:52:29,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:52:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:52:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:52:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:52:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 745 proven. 2620 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-03-20 07:52:32,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:52:32,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120629795] [2022-03-20 07:52:32,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120629795] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:52:32,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352106598] [2022-03-20 07:52:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:52:32,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:52:32,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:52:32,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:52:32,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 07:52:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:52:34,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 100 conjunts are in the unsatisfiable core [2022-03-20 07:52:34,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:52:34,274 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:52:34,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:52:34,370 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 07:52:34,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 07:52:34,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-20 07:52:34,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 07:52:34,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 07:52:34,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:34,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 07:52:34,951 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 07:52:34,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 07:52:34,961 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:52:34,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-20 07:52:35,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:35,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 07:52:35,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:35,493 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 07:52:35,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 07:52:35,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:35,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:52:35,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:35,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:52:35,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:35,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:52:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:35,575 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 07:52:35,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 07:52:36,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:36,189 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 07:52:36,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 07:52:36,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:36,225 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 07:52:36,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 07:52:36,272 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-20 07:52:36,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-03-20 07:52:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 313 [2022-03-20 07:52:37,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:37,761 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-20 07:52:37,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 379 treesize of output 392 [2022-03-20 07:52:37,788 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-20 07:52:37,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 317 [2022-03-20 07:52:42,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-03-20 07:52:42,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-03-20 07:52:42,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,395 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 07:52:42,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-03-20 07:52:42,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-03-20 07:52:42,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:52:42,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-03-20 07:52:42,641 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-20 07:52:42,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-03-20 07:52:42,725 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 07:52:42,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 07:52:42,846 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:52:42,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 07:52:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1547 proven. 538 refuted. 0 times theorem prover too weak. 1810 trivial. 0 not checked. [2022-03-20 07:52:42,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:52:47,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 07:52:47,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 07:52:47,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 816 treesize of output 714 [2022-03-20 07:52:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1689 proven. 141 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-03-20 07:52:48,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352106598] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 07:52:48,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 07:52:48,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 13] total 49 [2022-03-20 07:52:48,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636215993] [2022-03-20 07:52:48,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 07:52:48,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-20 07:52:48,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:52:48,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-20 07:52:48,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=2026, Unknown=0, NotChecked=0, Total=2352 [2022-03-20 07:52:48,735 INFO L87 Difference]: Start difference. First operand 9984 states and 14676 transitions. Second operand has 49 states, 48 states have (on average 17.479166666666668) internal successors, (839), 47 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:52:50,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:52,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:53,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:54,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:56,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:52:58,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:00,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:02,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:03,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:05,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:07,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:42,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:53:42,049 INFO L93 Difference]: Finished difference Result 55664 states and 79942 transitions. [2022-03-20 07:53:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2022-03-20 07:53:42,050 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 17.479166666666668) internal successors, (839), 47 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-20 07:53:42,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:53:42,106 INFO L225 Difference]: With dead ends: 55664 [2022-03-20 07:53:42,106 INFO L226 Difference]: Without dead ends: 55664 [2022-03-20 07:53:42,109 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1666 GetRequests, 1412 SyntacticMatches, 16 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22333 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=6739, Invalid=50621, Unknown=0, NotChecked=0, Total=57360 [2022-03-20 07:53:42,109 INFO L913 BasicCegarLoop]: 1155 mSDtfsCounter, 5768 mSDsluCounter, 19752 mSDsCounter, 0 mSdLazyCounter, 22285 mSolverCounterSat, 941 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5768 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 29381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 22285 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 6152 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:53:42,110 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [5768 Valid, 20907 Invalid, 29381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [941 Valid, 22285 Invalid, 3 Unknown, 6152 Unchecked, 40.2s Time] [2022-03-20 07:53:42,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55664 states. [2022-03-20 07:53:42,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55664 to 33994. [2022-03-20 07:53:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33994 states, 33989 states have (on average 1.4731825002206596) internal successors, (50072), 33989 states have internal predecessors, (50072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:53:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33994 states to 33994 states and 50076 transitions. [2022-03-20 07:53:42,602 INFO L78 Accepts]: Start accepts. Automaton has 33994 states and 50076 transitions. Word has length 645 [2022-03-20 07:53:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:53:42,602 INFO L478 AbstractCegarLoop]: Abstraction has 33994 states and 50076 transitions. [2022-03-20 07:53:42,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 17.479166666666668) internal successors, (839), 47 states have internal predecessors, (839), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:53:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 33994 states and 50076 transitions. [2022-03-20 07:53:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2022-03-20 07:53:42,632 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:53:42,632 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:53:42,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-20 07:53:42,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:53:42,833 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:53:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:53:42,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2043647021, now seen corresponding path program 1 times [2022-03-20 07:53:42,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:53:42,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413066908] [2022-03-20 07:53:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:53:42,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:53:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:53:43,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:53:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:53:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 893 proven. 0 refuted. 0 times theorem prover too weak. 3006 trivial. 0 not checked. [2022-03-20 07:53:43,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:53:43,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413066908] [2022-03-20 07:53:43,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413066908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:53:43,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:53:43,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:53:43,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707487104] [2022-03-20 07:53:43,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:53:43,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:53:43,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:53:43,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:53:43,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:53:43,457 INFO L87 Difference]: Start difference. First operand 33994 states and 50076 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:53:45,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:48,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:49,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:53:49,915 INFO L93 Difference]: Finished difference Result 36121 states and 52880 transitions. [2022-03-20 07:53:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:53:49,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 650 [2022-03-20 07:53:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:53:49,946 INFO L225 Difference]: With dead ends: 36121 [2022-03-20 07:53:49,946 INFO L226 Difference]: Without dead ends: 35784 [2022-03-20 07:53:49,946 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:53:49,946 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 104 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:53:49,946 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 07:53:49,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35784 states. [2022-03-20 07:53:50,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35784 to 33197. [2022-03-20 07:53:50,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33197 states, 33192 states have (on average 1.4730959267293324) internal successors, (48895), 33192 states have internal predecessors, (48895), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:53:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33197 states to 33197 states and 48899 transitions. [2022-03-20 07:53:50,283 INFO L78 Accepts]: Start accepts. Automaton has 33197 states and 48899 transitions. Word has length 650 [2022-03-20 07:53:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:53:50,284 INFO L478 AbstractCegarLoop]: Abstraction has 33197 states and 48899 transitions. [2022-03-20 07:53:50,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:53:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 33197 states and 48899 transitions. [2022-03-20 07:53:50,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2022-03-20 07:53:50,325 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:53:50,325 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:53:50,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 07:53:50,326 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:53:50,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:53:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1920788225, now seen corresponding path program 1 times [2022-03-20 07:53:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:53:50,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000819932] [2022-03-20 07:53:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:53:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:53:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:53:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:53:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:53:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 1644 proven. 248 refuted. 0 times theorem prover too weak. 2007 trivial. 0 not checked. [2022-03-20 07:53:52,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:53:52,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000819932] [2022-03-20 07:53:52,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000819932] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:53:52,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042310802] [2022-03-20 07:53:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:53:52,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:53:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:53:52,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:53:52,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-20 07:53:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:53:53,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 2860 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-20 07:53:53,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:53:53,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:53:53,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 07:53:53,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:53:53,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 07:53:53,514 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-20 07:53:53,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 34 [2022-03-20 07:53:53,629 INFO L356 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-03-20 07:53:53,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 60 [2022-03-20 07:53:53,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:53:53,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:53:53,645 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:53:53,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:53:53,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:53:53,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:53:53,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:53:53,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:53:53,713 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-20 07:53:53,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-03-20 07:53:53,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 48 [2022-03-20 07:53:53,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 30 [2022-03-20 07:53:53,756 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-03-20 07:53:53,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 07:53:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 462 proven. 1 refuted. 0 times theorem prover too weak. 3436 trivial. 0 not checked. [2022-03-20 07:53:54,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:53:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 462 proven. 1 refuted. 0 times theorem prover too weak. 3436 trivial. 0 not checked. [2022-03-20 07:53:55,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042310802] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 07:53:55,414 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 07:53:55,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 29 [2022-03-20 07:53:55,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956474094] [2022-03-20 07:53:55,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 07:53:55,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-20 07:53:55,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:53:55,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-20 07:53:55,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2022-03-20 07:53:55,415 INFO L87 Difference]: Start difference. First operand 33197 states and 48899 transitions. Second operand has 29 states, 29 states have (on average 14.275862068965518) internal successors, (414), 28 states have internal predecessors, (414), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:53:56,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:53:58,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:00,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:02,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:05,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:07,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:09,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:11,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:13,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:15,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:17,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:18,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:54:32,185 INFO L93 Difference]: Finished difference Result 174618 states and 245876 transitions. [2022-03-20 07:54:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-20 07:54:32,187 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 14.275862068965518) internal successors, (414), 28 states have internal predecessors, (414), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 653 [2022-03-20 07:54:32,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:54:32,515 INFO L225 Difference]: With dead ends: 174618 [2022-03-20 07:54:32,515 INFO L226 Difference]: Without dead ends: 174548 [2022-03-20 07:54:32,525 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1531 GetRequests, 1346 SyntacticMatches, 1 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12528 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=4761, Invalid=29649, Unknown=0, NotChecked=0, Total=34410 [2022-03-20 07:54:32,525 INFO L913 BasicCegarLoop]: 600 mSDtfsCounter, 2129 mSDsluCounter, 8493 mSDsCounter, 0 mSdLazyCounter, 10106 mSolverCounterSat, 450 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 9093 SdHoareTripleChecker+Invalid, 12582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 10106 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 2019 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:54:32,525 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2129 Valid, 9093 Invalid, 12582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 10106 Invalid, 7 Unknown, 2019 Unchecked, 31.6s Time] [2022-03-20 07:54:32,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174548 states. [2022-03-20 07:54:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174548 to 80338. [2022-03-20 07:54:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80338 states, 80333 states have (on average 1.444823422503828) internal successors, (116067), 80333 states have internal predecessors, (116067), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80338 states to 80338 states and 116071 transitions. [2022-03-20 07:54:34,100 INFO L78 Accepts]: Start accepts. Automaton has 80338 states and 116071 transitions. Word has length 653 [2022-03-20 07:54:34,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:54:34,100 INFO L478 AbstractCegarLoop]: Abstraction has 80338 states and 116071 transitions. [2022-03-20 07:54:34,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 14.275862068965518) internal successors, (414), 28 states have internal predecessors, (414), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 80338 states and 116071 transitions. [2022-03-20 07:54:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-03-20 07:54:34,186 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:54:34,186 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:54:34,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-20 07:54:34,399 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-20 07:54:34,399 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:54:34,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:54:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1632412000, now seen corresponding path program 1 times [2022-03-20 07:54:34,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:54:34,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329431127] [2022-03-20 07:54:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:54:34,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:54:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:54:34,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:54:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:54:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3909 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-03-20 07:54:34,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:54:34,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329431127] [2022-03-20 07:54:34,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329431127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:54:34,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:54:34,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:54:34,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961904592] [2022-03-20 07:54:34,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:54:34,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:54:34,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:54:34,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:54:34,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:54:34,582 INFO L87 Difference]: Start difference. First operand 80338 states and 116071 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:35,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:37,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:39,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:54:40,371 INFO L93 Difference]: Finished difference Result 81862 states and 116265 transitions. [2022-03-20 07:54:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:54:40,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 655 [2022-03-20 07:54:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:54:40,482 INFO L225 Difference]: With dead ends: 81862 [2022-03-20 07:54:40,482 INFO L226 Difference]: Without dead ends: 81862 [2022-03-20 07:54:40,482 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:54:40,483 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 183 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:54:40,483 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 234 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 07:54:40,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81862 states. [2022-03-20 07:54:41,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81862 to 81378. [2022-03-20 07:54:41,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81378 states, 81373 states have (on average 1.4227938013837513) internal successors, (115777), 81373 states have internal predecessors, (115777), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81378 states to 81378 states and 115781 transitions. [2022-03-20 07:54:41,493 INFO L78 Accepts]: Start accepts. Automaton has 81378 states and 115781 transitions. Word has length 655 [2022-03-20 07:54:41,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:54:41,493 INFO L478 AbstractCegarLoop]: Abstraction has 81378 states and 115781 transitions. [2022-03-20 07:54:41,493 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 81378 states and 115781 transitions. [2022-03-20 07:54:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2022-03-20 07:54:41,568 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:54:41,569 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:54:41,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 07:54:41,569 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:54:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:54:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1223747399, now seen corresponding path program 1 times [2022-03-20 07:54:41,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:54:41,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82834607] [2022-03-20 07:54:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:54:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:54:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:54:42,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:54:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:54:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3913 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-03-20 07:54:42,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:54:42,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82834607] [2022-03-20 07:54:42,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82834607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:54:42,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:54:42,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:54:42,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715638579] [2022-03-20 07:54:42,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:54:42,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:54:42,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:54:42,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:54:42,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:54:42,087 INFO L87 Difference]: Start difference. First operand 81378 states and 115781 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:43,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:45,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:47,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:54:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:54:48,612 INFO L93 Difference]: Finished difference Result 160914 states and 226066 transitions. [2022-03-20 07:54:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:54:48,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 657 [2022-03-20 07:54:48,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:54:48,838 INFO L225 Difference]: With dead ends: 160914 [2022-03-20 07:54:48,839 INFO L226 Difference]: Without dead ends: 160914 [2022-03-20 07:54:48,850 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:54:48,850 INFO L913 BasicCegarLoop]: 405 mSDtfsCounter, 175 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:54:48,850 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 620 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 415 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-20 07:54:49,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160914 states. [2022-03-20 07:54:50,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160914 to 160912. [2022-03-20 07:54:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160912 states, 160907 states have (on average 1.4049171260417508) internal successors, (226061), 160907 states have internal predecessors, (226061), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160912 states to 160912 states and 226065 transitions. [2022-03-20 07:54:50,850 INFO L78 Accepts]: Start accepts. Automaton has 160912 states and 226065 transitions. Word has length 657 [2022-03-20 07:54:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:54:50,850 INFO L478 AbstractCegarLoop]: Abstraction has 160912 states and 226065 transitions. [2022-03-20 07:54:50,850 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:50,850 INFO L276 IsEmpty]: Start isEmpty. Operand 160912 states and 226065 transitions. [2022-03-20 07:54:51,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2022-03-20 07:54:51,149 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:54:51,149 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:54:51,149 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 07:54:51,149 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:54:51,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:54:51,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1257027363, now seen corresponding path program 1 times [2022-03-20 07:54:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:54:51,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147068891] [2022-03-20 07:54:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:54:51,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:54:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:54:52,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:54:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:54:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 1497 proven. 761 refuted. 0 times theorem prover too weak. 1657 trivial. 0 not checked. [2022-03-20 07:54:52,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:54:52,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147068891] [2022-03-20 07:54:52,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147068891] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:54:52,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846660911] [2022-03-20 07:54:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:54:52,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:54:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:54:52,563 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:54:52,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-20 07:54:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:54:54,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 2896 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-20 07:54:54,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:54:54,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 07:54:54,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:54:54,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-03-20 07:54:54,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:54:54,691 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 07:54:54,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 69 [2022-03-20 07:54:54,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:54:54,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2022-03-20 07:54:55,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:54:55,115 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 07:54:55,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 91 [2022-03-20 07:54:55,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:54:55,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-20 07:54:55,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:54:55,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2022-03-20 07:54:55,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:54:55,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 07:54:55,177 INFO L356 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-03-20 07:54:55,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 83 [2022-03-20 07:54:55,185 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:54:55,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 68 [2022-03-20 07:54:55,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 65 [2022-03-20 07:54:55,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-03-20 07:54:55,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-03-20 07:54:55,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:54:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 2012 proven. 88 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2022-03-20 07:54:55,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:54:56,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-03-20 07:54:56,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-20 07:54:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3915 backedges. 2012 proven. 63 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2022-03-20 07:54:57,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846660911] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 07:54:57,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 07:54:57,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 10] total 35 [2022-03-20 07:54:57,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280103162] [2022-03-20 07:54:57,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 07:54:57,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-20 07:54:57,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:54:57,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-20 07:54:57,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2022-03-20 07:54:57,081 INFO L87 Difference]: Start difference. First operand 160912 states and 226065 transitions. Second operand has 35 states, 35 states have (on average 16.6) internal successors, (581), 34 states have internal predecessors, (581), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:54:58,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:00,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:03,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:05,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:07,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:09,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:12,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:14,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:16,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:18,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:55:20,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:56:00,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:56:00,958 INFO L93 Difference]: Finished difference Result 1069836 states and 1453820 transitions. [2022-03-20 07:56:00,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 502 states. [2022-03-20 07:56:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 16.6) internal successors, (581), 34 states have internal predecessors, (581), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 658 [2022-03-20 07:56:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:56:02,673 INFO L225 Difference]: With dead ends: 1069836 [2022-03-20 07:56:02,673 INFO L226 Difference]: Without dead ends: 1064700 [2022-03-20 07:56:02,683 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2051 GetRequests, 1520 SyntacticMatches, 6 SemanticMatches, 525 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122180 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=21063, Invalid=256139, Unknown=0, NotChecked=0, Total=277202 [2022-03-20 07:56:02,684 INFO L913 BasicCegarLoop]: 792 mSDtfsCounter, 14541 mSDsluCounter, 13509 mSDsCounter, 0 mSdLazyCounter, 15200 mSolverCounterSat, 3804 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14541 SdHoareTripleChecker+Valid, 14301 SdHoareTripleChecker+Invalid, 22173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3804 IncrementalHoareTripleChecker+Valid, 15200 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 3164 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:56:02,684 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14541 Valid, 14301 Invalid, 22173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3804 Valid, 15200 Invalid, 5 Unknown, 3164 Unchecked, 38.4s Time] [2022-03-20 07:56:03,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064700 states. [2022-03-20 07:56:13,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064700 to 762444. [2022-03-20 07:56:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762444 states, 762439 states have (on average 1.3828319380304523) internal successors, (1054325), 762439 states have internal predecessors, (1054325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:56:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762444 states to 762444 states and 1054329 transitions. [2022-03-20 07:56:16,630 INFO L78 Accepts]: Start accepts. Automaton has 762444 states and 1054329 transitions. Word has length 658 [2022-03-20 07:56:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:56:16,631 INFO L478 AbstractCegarLoop]: Abstraction has 762444 states and 1054329 transitions. [2022-03-20 07:56:16,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 16.6) internal successors, (581), 34 states have internal predecessors, (581), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:56:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 762444 states and 1054329 transitions. [2022-03-20 07:56:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2022-03-20 07:56:17,601 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:56:17,602 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:56:17,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-20 07:56:17,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:56:17,802 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:56:17,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:56:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash -820872816, now seen corresponding path program 2 times [2022-03-20 07:56:17,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:56:17,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451704747] [2022-03-20 07:56:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:56:17,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:56:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:56:19,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:56:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:56:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4334 backedges. 1887 proven. 297 refuted. 0 times theorem prover too weak. 2150 trivial. 0 not checked. [2022-03-20 07:56:19,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:56:19,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451704747] [2022-03-20 07:56:19,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451704747] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:56:19,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473143167] [2022-03-20 07:56:19,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 07:56:19,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:56:19,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:56:19,864 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:56:19,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-20 07:57:01,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-20 07:57:01,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 07:57:01,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 204 conjunts are in the unsatisfiable core [2022-03-20 07:57:01,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:57:01,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:57:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:57:01,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:57:01,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:57:01,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:57:01,540 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-20 07:57:01,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 92993518 treesize of output 19726460 [2022-03-20 07:57:03,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:57:10,041 INFO L244 Elim1Store]: Index analysis took 685 ms