/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.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 19:58:39,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 19:58:39,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 19:58:39,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 19:58:39,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 19:58:39,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 19:58:39,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 19:58:39,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 19:58:39,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 19:58:39,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 19:58:39,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 19:58:39,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 19:58:39,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 19:58:39,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 19:58:39,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 19:58:39,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 19:58:39,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 19:58:39,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 19:58:39,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 19:58:39,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 19:58:39,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 19:58:39,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 19:58:39,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 19:58:39,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 19:58:39,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 19:58:39,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 19:58:39,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 19:58:39,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 19:58:39,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 19:58:39,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 19:58:39,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 19:58:39,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 19:58:39,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 19:58:39,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 19:58:39,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 19:58:39,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 19:58:39,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 19:58:39,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 19:58:39,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 19:58:39,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 19:58:39,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 19:58:39,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 19:58:39,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 19:58:39,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 19:58:39,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 19:58:39,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 19:58:39,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 19:58:39,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 19:58:39,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 19:58:39,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 19:58:39,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 19:58:39,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 19:58:39,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 19:58:39,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 19:58:39,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 19:58:39,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 19:58:39,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 19:58:39,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 19:58:39,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 19:58:39,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 19:58:39,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:58:39,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 19:58:39,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 19:58:39,537 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 19:58:39,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 19:58:39,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 19:58:39,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 19:58:39,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 19:58:39,720 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 19:58:39,721 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 19:58:39,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-02-23 19:58:39,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54524ad8a/5d27050e15e049d0984eef2ea0fb644a/FLAGbd5319754 [2022-02-23 19:58:40,204 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 19:58:40,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-02-23 19:58:40,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54524ad8a/5d27050e15e049d0984eef2ea0fb644a/FLAGbd5319754 [2022-02-23 19:58:40,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54524ad8a/5d27050e15e049d0984eef2ea0fb644a [2022-02-23 19:58:40,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 19:58:40,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 19:58:40,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 19:58:40,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 19:58:40,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 19:58:40,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:40,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad997eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40, skipping insertion in model container [2022-02-23 19:58:40,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:40,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 19:58:40,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 19:58:40,868 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.02.i.cil-2.c[72502,72515] [2022-02-23 19:58:40,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:58:40,884 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 19:58:40,956 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.02.i.cil-2.c[72502,72515] [2022-02-23 19:58:40,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 19:58:40,969 INFO L208 MainTranslator]: Completed translation [2022-02-23 19:58:40,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40 WrapperNode [2022-02-23 19:58:40,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 19:58:40,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 19:58:40,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 19:58:40,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 19:58:40,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:40,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:40,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:40,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:41,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:41,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:41,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:41,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 19:58:41,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 19:58:41,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 19:58:41,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 19:58:41,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (1/1) ... [2022-02-23 19:58:41,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 19:58:41,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 19:58:41,088 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) [2022-02-23 19:58:41,106 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 [2022-02-23 19:58:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 19:58:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 19:58:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 19:58:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-23 19:58:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-23 19:58:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 19:58:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 19:58:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 19:58:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 19:58:41,125 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 19:58:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 19:58:41,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 19:58:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 19:58:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 19:58:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 19:58:41,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 19:58:41,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 19:58:41,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 19:58:41,319 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 19:58:41,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 19:58:43,566 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 19:58:43,834 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-23 19:58:43,834 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-23 19:58:43,843 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 19:58:43,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 19:58:43,849 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 19:58:43,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:58:43 BoogieIcfgContainer [2022-02-23 19:58:43,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 19:58:43,851 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 19:58:43,851 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 19:58:43,852 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 19:58:43,854 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:58:43" (1/1) ... [2022-02-23 19:58:43,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:58:43 BasicIcfg [2022-02-23 19:58:43,883 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 19:58:43,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 19:58:43,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 19:58:43,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 19:58:43,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 07:58:40" (1/4) ... [2022-02-23 19:58:43,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e3d8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:58:43, skipping insertion in model container [2022-02-23 19:58:43,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 07:58:40" (2/4) ... [2022-02-23 19:58:43,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e3d8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 07:58:43, skipping insertion in model container [2022-02-23 19:58:43,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 07:58:43" (3/4) ... [2022-02-23 19:58:43,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e3d8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 07:58:43, skipping insertion in model container [2022-02-23 19:58:43,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 07:58:43" (4/4) ... [2022-02-23 19:58:43,888 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-2.cJordan [2022-02-23 19:58:43,892 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 19:58:43,892 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 19:58:43,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 19:58:43,926 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 19:58:43,926 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 19:58:43,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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) [2022-02-23 19:58:43,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-23 19:58:43,957 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:43,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:43,958 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:43,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1355699347, now seen corresponding path program 1 times [2022-02-23 19:58:43,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:43,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200308813] [2022-02-23 19:58:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:43,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:44,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:58:44,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:44,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200308813] [2022-02-23 19:58:44,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200308813] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:44,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:44,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:44,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222723122] [2022-02-23 19:58:44,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:44,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:44,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:44,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:44,382 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:46,409 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 [] [2022-02-23 19:58:47,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:47,018 INFO L93 Difference]: Finished difference Result 277 states and 458 transitions. [2022-02-23 19:58:47,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:47,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-02-23 19:58:47,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:47,027 INFO L225 Difference]: With dead ends: 277 [2022-02-23 19:58:47,027 INFO L226 Difference]: Without dead ends: 251 [2022-02-23 19:58:47,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:47,030 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 140 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:47,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 433 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-23 19:58:47,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-02-23 19:58:47,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 180. [2022-02-23 19:58:47,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6057142857142856) internal successors, (281), 175 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:47,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 285 transitions. [2022-02-23 19:58:47,068 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 285 transitions. Word has length 52 [2022-02-23 19:58:47,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:47,069 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 285 transitions. [2022-02-23 19:58:47,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 285 transitions. [2022-02-23 19:58:47,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-23 19:58:47,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:47,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:47,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 19:58:47,071 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:47,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:47,072 INFO L85 PathProgramCache]: Analyzing trace with hash 923942425, now seen corresponding path program 1 times [2022-02-23 19:58:47,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:47,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860836634] [2022-02-23 19:58:47,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:47,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:47,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:58:47,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:47,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860836634] [2022-02-23 19:58:47,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860836634] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:47,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:47,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:47,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583759175] [2022-02-23 19:58:47,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:47,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:47,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:47,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:47,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:47,194 INFO L87 Difference]: Start difference. First operand 180 states and 285 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:49,213 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 [] [2022-02-23 19:58:49,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:49,566 INFO L93 Difference]: Finished difference Result 208 states and 325 transitions. [2022-02-23 19:58:49,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:49,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-02-23 19:58:49,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:49,570 INFO L225 Difference]: With dead ends: 208 [2022-02-23 19:58:49,571 INFO L226 Difference]: Without dead ends: 208 [2022-02-23 19:58:49,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:49,572 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 22 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:49,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 451 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:58:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-02-23 19:58:49,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 191. [2022-02-23 19:58:49,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.6129032258064515) internal successors, (300), 186 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:49,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 304 transitions. [2022-02-23 19:58:49,586 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 304 transitions. Word has length 53 [2022-02-23 19:58:49,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:49,586 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 304 transitions. [2022-02-23 19:58:49,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 304 transitions. [2022-02-23 19:58:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 19:58:49,588 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:49,588 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:49,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 19:58:49,588 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:49,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:49,589 INFO L85 PathProgramCache]: Analyzing trace with hash -965147185, now seen corresponding path program 1 times [2022-02-23 19:58:49,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:49,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529363888] [2022-02-23 19:58:49,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:49,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:49,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:58:49,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:49,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529363888] [2022-02-23 19:58:49,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529363888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:49,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:49,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:49,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747600160] [2022-02-23 19:58:49,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:49,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:49,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:49,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:49,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:49,707 INFO L87 Difference]: Start difference. First operand 191 states and 304 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) [2022-02-23 19:58:51,716 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 [] [2022-02-23 19:58:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:52,091 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-02-23 19:58:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:52,091 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 [2022-02-23 19:58:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:52,092 INFO L225 Difference]: With dead ends: 208 [2022-02-23 19:58:52,093 INFO L226 Difference]: Without dead ends: 208 [2022-02-23 19:58:52,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:52,094 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:52,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-02-23 19:58:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 191. [2022-02-23 19:58:52,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.60752688172043) internal successors, (299), 186 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:52,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 303 transitions. [2022-02-23 19:58:52,102 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 303 transitions. Word has length 66 [2022-02-23 19:58:52,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:52,102 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 303 transitions. [2022-02-23 19:58:52,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 303 transitions. [2022-02-23 19:58:52,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 19:58:52,104 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:52,104 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:52,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 19:58:52,104 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:52,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:52,104 INFO L85 PathProgramCache]: Analyzing trace with hash 328113503, now seen corresponding path program 1 times [2022-02-23 19:58:52,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:52,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228919494] [2022-02-23 19:58:52,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:52,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:52,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:52,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:58:52,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:52,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228919494] [2022-02-23 19:58:52,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228919494] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:52,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:52,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:52,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963591144] [2022-02-23 19:58:52,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:52,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:52,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:52,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:52,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:52,263 INFO L87 Difference]: Start difference. First operand 191 states and 303 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) [2022-02-23 19:58:54,273 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 [] [2022-02-23 19:58:54,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:54,713 INFO L93 Difference]: Finished difference Result 304 states and 475 transitions. [2022-02-23 19:58:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:54,713 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 [2022-02-23 19:58:54,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:54,714 INFO L225 Difference]: With dead ends: 304 [2022-02-23 19:58:54,714 INFO L226 Difference]: Without dead ends: 304 [2022-02-23 19:58:54,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:54,715 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 142 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:54,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:58:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-23 19:58:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 202. [2022-02-23 19:58:54,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5888324873096447) internal successors, (313), 197 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 317 transitions. [2022-02-23 19:58:54,725 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 317 transitions. Word has length 67 [2022-02-23 19:58:54,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:54,725 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 317 transitions. [2022-02-23 19:58:54,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 317 transitions. [2022-02-23 19:58:54,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 19:58:54,727 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:54,727 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:54,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 19:58:54,727 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:54,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:54,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1220763967, now seen corresponding path program 1 times [2022-02-23 19:58:54,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:54,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211007960] [2022-02-23 19:58:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:54,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:58:54,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:54,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211007960] [2022-02-23 19:58:54,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211007960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:54,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:54,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:54,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832095841] [2022-02-23 19:58:54,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:54,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:54,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:54,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:54,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:54,883 INFO L87 Difference]: Start difference. First operand 202 states and 317 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) [2022-02-23 19:58:56,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:58:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:58:57,192 INFO L93 Difference]: Finished difference Result 218 states and 336 transitions. [2022-02-23 19:58:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:58:57,192 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 [2022-02-23 19:58:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:58:57,193 INFO L225 Difference]: With dead ends: 218 [2022-02-23 19:58:57,193 INFO L226 Difference]: Without dead ends: 218 [2022-02-23 19:58:57,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:58:57,194 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 26 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:58:57,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:58:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-02-23 19:58:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2022-02-23 19:58:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.583756345177665) internal successors, (312), 197 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 316 transitions. [2022-02-23 19:58:57,208 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 316 transitions. Word has length 67 [2022-02-23 19:58:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:58:57,208 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 316 transitions. [2022-02-23 19:58:57,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:58:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 316 transitions. [2022-02-23 19:58:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 19:58:57,210 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:58:57,210 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:58:57,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 19:58:57,210 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:58:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:58:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash 669903327, now seen corresponding path program 1 times [2022-02-23 19:58:57,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:58:57,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921001183] [2022-02-23 19:58:57,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:58:57,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:58:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:58:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:58:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:58:57,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:58:57,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921001183] [2022-02-23 19:58:57,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921001183] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:58:57,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:58:57,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:58:57,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154616672] [2022-02-23 19:58:57,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:58:57,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:58:57,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:58:57,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:58:57,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:58:57,338 INFO L87 Difference]: Start difference. First operand 202 states and 316 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) [2022-02-23 19:58:59,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:01,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:03,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:05,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:05,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:05,541 INFO L93 Difference]: Finished difference Result 217 states and 334 transitions. [2022-02-23 19:59:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:05,542 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 [2022-02-23 19:59:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:05,543 INFO L225 Difference]: With dead ends: 217 [2022-02-23 19:59:05,543 INFO L226 Difference]: Without dead ends: 217 [2022-02-23 19:59:05,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:05,544 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 19 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:05,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 457 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-23 19:59:05,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-23 19:59:05,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 202. [2022-02-23 19:59:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5786802030456852) internal successors, (311), 197 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 315 transitions. [2022-02-23 19:59:05,549 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 315 transitions. Word has length 67 [2022-02-23 19:59:05,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:05,550 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 315 transitions. [2022-02-23 19:59:05,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 315 transitions. [2022-02-23 19:59:05,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 19:59:05,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:05,551 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:05,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 19:59:05,552 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:05,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:05,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1997406977, now seen corresponding path program 1 times [2022-02-23 19:59:05,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:05,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633077093] [2022-02-23 19:59:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:05,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:05,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:05,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633077093] [2022-02-23 19:59:05,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633077093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:05,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:05,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:05,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070008721] [2022-02-23 19:59:05,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:05,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:05,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:05,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:05,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:05,698 INFO L87 Difference]: Start difference. First operand 202 states and 315 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) [2022-02-23 19:59:07,707 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 [] [2022-02-23 19:59:08,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:08,157 INFO L93 Difference]: Finished difference Result 304 states and 470 transitions. [2022-02-23 19:59:08,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:08,158 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 [2022-02-23 19:59:08,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:08,159 INFO L225 Difference]: With dead ends: 304 [2022-02-23 19:59:08,159 INFO L226 Difference]: Without dead ends: 304 [2022-02-23 19:59:08,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:08,160 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:08,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:59:08,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-23 19:59:08,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 208. [2022-02-23 19:59:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5763546798029557) internal successors, (320), 203 states have internal predecessors, (320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 324 transitions. [2022-02-23 19:59:08,165 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 324 transitions. Word has length 67 [2022-02-23 19:59:08,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:08,165 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 324 transitions. [2022-02-23 19:59:08,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:08,165 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 324 transitions. [2022-02-23 19:59:08,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 19:59:08,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:08,166 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:08,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 19:59:08,166 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:08,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:08,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1264278193, now seen corresponding path program 1 times [2022-02-23 19:59:08,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:08,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277963625] [2022-02-23 19:59:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:08,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:08,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:08,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277963625] [2022-02-23 19:59:08,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277963625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:08,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:08,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:08,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494172780] [2022-02-23 19:59:08,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:08,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:08,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:08,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:08,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:08,260 INFO L87 Difference]: Start difference. First operand 208 states and 324 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) [2022-02-23 19:59:10,272 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 [] [2022-02-23 19:59:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:10,747 INFO L93 Difference]: Finished difference Result 304 states and 467 transitions. [2022-02-23 19:59:10,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:10,747 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 [2022-02-23 19:59:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:10,749 INFO L225 Difference]: With dead ends: 304 [2022-02-23 19:59:10,749 INFO L226 Difference]: Without dead ends: 304 [2022-02-23 19:59:10,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:10,749 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 138 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:10,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:59:10,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-02-23 19:59:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 208. [2022-02-23 19:59:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.561576354679803) internal successors, (317), 203 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 321 transitions. [2022-02-23 19:59:10,754 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 321 transitions. Word has length 68 [2022-02-23 19:59:10,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:10,754 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 321 transitions. [2022-02-23 19:59:10,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:10,754 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 321 transitions. [2022-02-23 19:59:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-23 19:59:10,755 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:10,755 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:10,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 19:59:10,755 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:10,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1953334341, now seen corresponding path program 1 times [2022-02-23 19:59:10,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:10,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095807829] [2022-02-23 19:59:10,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:10,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:10,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:10,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095807829] [2022-02-23 19:59:10,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095807829] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:10,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:10,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:10,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638423188] [2022-02-23 19:59:10,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:10,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:10,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:10,885 INFO L87 Difference]: Start difference. First operand 208 states and 321 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) [2022-02-23 19:59:12,893 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 [] [2022-02-23 19:59:13,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:13,193 INFO L93 Difference]: Finished difference Result 221 states and 337 transitions. [2022-02-23 19:59:13,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:13,193 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 [2022-02-23 19:59:13,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:13,194 INFO L225 Difference]: With dead ends: 221 [2022-02-23 19:59:13,194 INFO L226 Difference]: Without dead ends: 221 [2022-02-23 19:59:13,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:13,195 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:13,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:59:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-02-23 19:59:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 208. [2022-02-23 19:59:13,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5566502463054188) internal successors, (316), 203 states have internal predecessors, (316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 320 transitions. [2022-02-23 19:59:13,199 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 320 transitions. Word has length 69 [2022-02-23 19:59:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:13,199 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 320 transitions. [2022-02-23 19:59:13,199 INFO L471 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) [2022-02-23 19:59:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 320 transitions. [2022-02-23 19:59:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-23 19:59:13,200 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:13,200 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:13,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 19:59:13,200 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:13,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1734108460, now seen corresponding path program 1 times [2022-02-23 19:59:13,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:13,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962436145] [2022-02-23 19:59:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:13,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:13,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:13,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962436145] [2022-02-23 19:59:13,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962436145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:13,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:13,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:13,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141078659] [2022-02-23 19:59:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:13,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:13,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:13,304 INFO L87 Difference]: Start difference. First operand 208 states and 320 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:15,049 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 [] [2022-02-23 19:59:18,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:20,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:20,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:20,322 INFO L93 Difference]: Finished difference Result 211 states and 323 transitions. [2022-02-23 19:59:20,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:20,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-23 19:59:20,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:20,323 INFO L225 Difference]: With dead ends: 211 [2022-02-23 19:59:20,323 INFO L226 Difference]: Without dead ends: 211 [2022-02-23 19:59:20,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:20,324 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:20,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-23 19:59:20,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-02-23 19:59:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2022-02-23 19:59:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5517241379310345) internal successors, (315), 203 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:20,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 319 transitions. [2022-02-23 19:59:20,327 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 319 transitions. Word has length 70 [2022-02-23 19:59:20,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:20,328 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 319 transitions. [2022-02-23 19:59:20,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 319 transitions. [2022-02-23 19:59:20,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-23 19:59:20,328 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:20,328 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:20,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 19:59:20,329 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:20,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:20,329 INFO L85 PathProgramCache]: Analyzing trace with hash 338203677, now seen corresponding path program 1 times [2022-02-23 19:59:20,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:20,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982112464] [2022-02-23 19:59:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:20,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:20,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:20,415 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:20,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:20,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982112464] [2022-02-23 19:59:20,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982112464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:20,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:20,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:20,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000116977] [2022-02-23 19:59:20,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:20,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:20,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:20,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:20,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:20,417 INFO L87 Difference]: Start difference. First operand 208 states and 319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:21,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:23,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:25,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:27,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 19:59:28,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:28,094 INFO L93 Difference]: Finished difference Result 251 states and 382 transitions. [2022-02-23 19:59:28,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:28,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-23 19:59:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:28,096 INFO L225 Difference]: With dead ends: 251 [2022-02-23 19:59:28,096 INFO L226 Difference]: Without dead ends: 251 [2022-02-23 19:59:28,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:28,096 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 33 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:28,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 475 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-23 19:59:28,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-02-23 19:59:28,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 230. [2022-02-23 19:59:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5555555555555556) internal successors, (350), 225 states have internal predecessors, (350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 354 transitions. [2022-02-23 19:59:28,100 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 354 transitions. Word has length 70 [2022-02-23 19:59:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:28,101 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 354 transitions. [2022-02-23 19:59:28,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 354 transitions. [2022-02-23 19:59:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-23 19:59:28,101 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:28,102 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:28,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 19:59:28,102 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:28,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:28,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1716885067, now seen corresponding path program 1 times [2022-02-23 19:59:28,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:28,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225356077] [2022-02-23 19:59:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:28,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:28,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:28,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225356077] [2022-02-23 19:59:28,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225356077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:28,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:28,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:28,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666643966] [2022-02-23 19:59:28,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:28,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:28,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:28,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:28,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:28,206 INFO L87 Difference]: Start difference. First operand 230 states and 354 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:30,219 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 [] [2022-02-23 19:59:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:30,719 INFO L93 Difference]: Finished difference Result 367 states and 572 transitions. [2022-02-23 19:59:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:30,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-23 19:59:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:30,721 INFO L225 Difference]: With dead ends: 367 [2022-02-23 19:59:30,721 INFO L226 Difference]: Without dead ends: 367 [2022-02-23 19:59:30,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:30,721 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 135 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:30,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 536 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 569 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:59:30,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-02-23 19:59:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 246. [2022-02-23 19:59:30,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5435684647302905) internal successors, (372), 241 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:30,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 376 transitions. [2022-02-23 19:59:30,726 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 376 transitions. Word has length 83 [2022-02-23 19:59:30,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:30,726 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 376 transitions. [2022-02-23 19:59:30,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:30,726 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 376 transitions. [2022-02-23 19:59:30,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-23 19:59:30,727 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:30,727 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1] [2022-02-23 19:59:30,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 19:59:30,727 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:30,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1535582141, now seen corresponding path program 1 times [2022-02-23 19:59:30,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:30,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138307458] [2022-02-23 19:59:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:30,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-23 19:59:30,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:30,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138307458] [2022-02-23 19:59:30,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138307458] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:30,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:30,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:30,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773331438] [2022-02-23 19:59:30,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:30,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:30,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:30,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:30,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:30,818 INFO L87 Difference]: Start difference. First operand 246 states and 376 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:32,831 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 [] [2022-02-23 19:59:33,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:33,262 INFO L93 Difference]: Finished difference Result 258 states and 390 transitions. [2022-02-23 19:59:33,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:33,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-23 19:59:33,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:33,263 INFO L225 Difference]: With dead ends: 258 [2022-02-23 19:59:33,263 INFO L226 Difference]: Without dead ends: 258 [2022-02-23 19:59:33,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:33,264 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 20 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:33,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 540 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:59:33,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-02-23 19:59:33,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2022-02-23 19:59:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5394190871369295) internal successors, (371), 241 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) [2022-02-23 19:59:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 375 transitions. [2022-02-23 19:59:33,268 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 375 transitions. Word has length 84 [2022-02-23 19:59:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:33,268 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 375 transitions. [2022-02-23 19:59:33,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 375 transitions. [2022-02-23 19:59:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-23 19:59:33,269 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:33,269 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-23 19:59:33,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 19:59:33,269 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2086442781, now seen corresponding path program 1 times [2022-02-23 19:59:33,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:33,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110278090] [2022-02-23 19:59:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:33,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:33,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:33,366 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:33,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:33,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110278090] [2022-02-23 19:59:33,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110278090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:33,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:33,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:33,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477981052] [2022-02-23 19:59:33,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:33,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:33,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:33,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:33,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:33,368 INFO L87 Difference]: Start difference. First operand 246 states and 375 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) [2022-02-23 19:59:35,376 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 [] [2022-02-23 19:59:35,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:35,883 INFO L93 Difference]: Finished difference Result 341 states and 517 transitions. [2022-02-23 19:59:35,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:35,884 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 84 [2022-02-23 19:59:35,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:35,885 INFO L225 Difference]: With dead ends: 341 [2022-02-23 19:59:35,885 INFO L226 Difference]: Without dead ends: 341 [2022-02-23 19:59:35,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:35,885 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 133 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:35,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 318 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 19:59:35,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-02-23 19:59:35,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 247. [2022-02-23 19:59:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5289256198347108) internal successors, (370), 242 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:35,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 374 transitions. [2022-02-23 19:59:35,889 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 374 transitions. Word has length 84 [2022-02-23 19:59:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:35,889 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 374 transitions. [2022-02-23 19:59:35,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 374 transitions. [2022-02-23 19:59:35,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-23 19:59:35,890 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:35,890 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2022-02-23 19:59:35,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 19:59:35,890 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:35,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 710751120, now seen corresponding path program 1 times [2022-02-23 19:59:35,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:35,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771731647] [2022-02-23 19:59:35,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:35,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:35,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:35,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771731647] [2022-02-23 19:59:35,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771731647] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:35,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:35,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:35,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295399862] [2022-02-23 19:59:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:35,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:35,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:35,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:35,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:35,981 INFO L87 Difference]: Start difference. First operand 247 states and 374 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) [2022-02-23 19:59:37,990 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 [] [2022-02-23 19:59:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:38,305 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2022-02-23 19:59:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:38,306 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 85 [2022-02-23 19:59:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:38,307 INFO L225 Difference]: With dead ends: 265 [2022-02-23 19:59:38,307 INFO L226 Difference]: Without dead ends: 265 [2022-02-23 19:59:38,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:38,307 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 40 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:38,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 481 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:59:38,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-23 19:59:38,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2022-02-23 19:59:38,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.524793388429752) internal successors, (369), 242 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 373 transitions. [2022-02-23 19:59:38,311 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 373 transitions. Word has length 85 [2022-02-23 19:59:38,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:38,311 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 373 transitions. [2022-02-23 19:59:38,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:38,312 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 373 transitions. [2022-02-23 19:59:38,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-23 19:59:38,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:38,312 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:38,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 19:59:38,312 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:38,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:38,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1818163604, now seen corresponding path program 1 times [2022-02-23 19:59:38,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:38,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642444783] [2022-02-23 19:59:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:38,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:38,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:38,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642444783] [2022-02-23 19:59:38,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642444783] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:38,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:38,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:38,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005432758] [2022-02-23 19:59:38,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:38,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:38,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:38,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:38,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:38,421 INFO L87 Difference]: Start difference. First operand 247 states and 373 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:40,428 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 [] [2022-02-23 19:59:40,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:40,744 INFO L93 Difference]: Finished difference Result 265 states and 397 transitions. [2022-02-23 19:59:40,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:40,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-02-23 19:59:40,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:40,745 INFO L225 Difference]: With dead ends: 265 [2022-02-23 19:59:40,745 INFO L226 Difference]: Without dead ends: 265 [2022-02-23 19:59:40,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:40,746 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 37 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:40,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 481 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:59:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-23 19:59:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2022-02-23 19:59:40,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5206611570247934) internal successors, (368), 242 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 372 transitions. [2022-02-23 19:59:40,749 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 372 transitions. Word has length 87 [2022-02-23 19:59:40,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:40,750 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 372 transitions. [2022-02-23 19:59:40,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:40,750 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 372 transitions. [2022-02-23 19:59:40,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-23 19:59:40,750 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:40,750 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-23 19:59:40,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 19:59:40,751 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:40,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:40,751 INFO L85 PathProgramCache]: Analyzing trace with hash 989898955, now seen corresponding path program 1 times [2022-02-23 19:59:40,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:40,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70861084] [2022-02-23 19:59:40,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:40,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 19:59:40,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:40,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70861084] [2022-02-23 19:59:40,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70861084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:40,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:40,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:40,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271568653] [2022-02-23 19:59:40,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:40,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:40,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:40,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:40,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:40,839 INFO L87 Difference]: Start difference. First operand 247 states and 372 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) [2022-02-23 19:59:42,856 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 [] [2022-02-23 19:59:43,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:43,180 INFO L93 Difference]: Finished difference Result 255 states and 383 transitions. [2022-02-23 19:59:43,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:43,181 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 88 [2022-02-23 19:59:43,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:43,182 INFO L225 Difference]: With dead ends: 255 [2022-02-23 19:59:43,182 INFO L226 Difference]: Without dead ends: 255 [2022-02-23 19:59:43,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:43,182 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 28 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:43,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 495 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:59:43,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-23 19:59:43,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 247. [2022-02-23 19:59:43,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5165289256198347) internal successors, (367), 242 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:43,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 371 transitions. [2022-02-23 19:59:43,186 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 371 transitions. Word has length 88 [2022-02-23 19:59:43,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:43,186 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 371 transitions. [2022-02-23 19:59:43,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 371 transitions. [2022-02-23 19:59:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-23 19:59:43,187 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:43,187 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:43,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 19:59:43,187 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:43,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176068, now seen corresponding path program 1 times [2022-02-23 19:59:43,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:43,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692557543] [2022-02-23 19:59:43,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:43,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:59:43,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:43,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692557543] [2022-02-23 19:59:43,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692557543] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:43,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:43,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:43,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002432707] [2022-02-23 19:59:43,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:43,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:43,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:43,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:43,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:43,290 INFO L87 Difference]: Start difference. First operand 247 states and 371 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:45,300 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 [] [2022-02-23 19:59:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:45,692 INFO L93 Difference]: Finished difference Result 339 states and 510 transitions. [2022-02-23 19:59:45,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:45,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-02-23 19:59:45,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:45,693 INFO L225 Difference]: With dead ends: 339 [2022-02-23 19:59:45,694 INFO L226 Difference]: Without dead ends: 339 [2022-02-23 19:59:45,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:45,694 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 73 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:45,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 443 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:59:45,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-02-23 19:59:45,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2022-02-23 19:59:45,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 285 states have (on average 1.543859649122807) internal successors, (440), 285 states have internal predecessors, (440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:45,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 444 transitions. [2022-02-23 19:59:45,698 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 444 transitions. Word has length 92 [2022-02-23 19:59:45,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:45,698 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 444 transitions. [2022-02-23 19:59:45,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 444 transitions. [2022-02-23 19:59:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-23 19:59:45,699 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:45,699 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:45,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 19:59:45,700 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:45,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:45,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1663097307, now seen corresponding path program 1 times [2022-02-23 19:59:45,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:45,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462689921] [2022-02-23 19:59:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:59:45,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:45,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462689921] [2022-02-23 19:59:45,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462689921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:45,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:45,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:45,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44395469] [2022-02-23 19:59:45,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:45,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:45,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:45,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:45,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:45,791 INFO L87 Difference]: Start difference. First operand 290 states and 444 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:47,809 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 [] [2022-02-23 19:59:48,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:48,224 INFO L93 Difference]: Finished difference Result 384 states and 586 transitions. [2022-02-23 19:59:48,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:48,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-02-23 19:59:48,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:48,226 INFO L225 Difference]: With dead ends: 384 [2022-02-23 19:59:48,226 INFO L226 Difference]: Without dead ends: 382 [2022-02-23 19:59:48,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:48,227 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 107 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:48,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 328 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:59:48,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-02-23 19:59:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 314. [2022-02-23 19:59:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5760517799352751) internal successors, (487), 309 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 491 transitions. [2022-02-23 19:59:48,231 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 491 transitions. Word has length 92 [2022-02-23 19:59:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:48,232 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 491 transitions. [2022-02-23 19:59:48,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 491 transitions. [2022-02-23 19:59:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-02-23 19:59:48,232 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:48,233 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:48,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 19:59:48,233 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:48,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1099971198, now seen corresponding path program 1 times [2022-02-23 19:59:48,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:48,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608218016] [2022-02-23 19:59:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:48,362 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:59:48,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:48,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608218016] [2022-02-23 19:59:48,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608218016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:48,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:48,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 19:59:48,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97531203] [2022-02-23 19:59:48,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:48,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 19:59:48,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:48,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 19:59:48,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 19:59:48,363 INFO L87 Difference]: Start difference. First operand 314 states and 491 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) [2022-02-23 19:59:50,372 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 [] [2022-02-23 19:59:50,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:50,774 INFO L93 Difference]: Finished difference Result 421 states and 649 transitions. [2022-02-23 19:59:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 19:59:50,775 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 120 [2022-02-23 19:59:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:50,776 INFO L225 Difference]: With dead ends: 421 [2022-02-23 19:59:50,776 INFO L226 Difference]: Without dead ends: 421 [2022-02-23 19:59:50,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 19:59:50,777 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 115 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:50,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 330 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:59:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-02-23 19:59:50,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 346. [2022-02-23 19:59:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 341 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 542 transitions. [2022-02-23 19:59:50,782 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 542 transitions. Word has length 120 [2022-02-23 19:59:50,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:50,782 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 542 transitions. [2022-02-23 19:59:50,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 542 transitions. [2022-02-23 19:59:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-23 19:59:50,783 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:50,783 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:50,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 19:59:50,783 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1373336550, now seen corresponding path program 1 times [2022-02-23 19:59:50,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:50,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920487052] [2022-02-23 19:59:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:50,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:50,941 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 19:59:50,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:50,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920487052] [2022-02-23 19:59:50,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920487052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:50,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:50,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:59:50,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321486686] [2022-02-23 19:59:50,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:50,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:59:50,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:59:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:59:50,942 INFO L87 Difference]: Start difference. First operand 346 states and 542 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:52,950 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 [] [2022-02-23 19:59:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:53,339 INFO L93 Difference]: Finished difference Result 660 states and 1043 transitions. [2022-02-23 19:59:53,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:59:53,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-23 19:59:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:53,341 INFO L225 Difference]: With dead ends: 660 [2022-02-23 19:59:53,341 INFO L226 Difference]: Without dead ends: 660 [2022-02-23 19:59:53,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:59:53,342 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:53,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 19:59:53,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-02-23 19:59:53,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2022-02-23 19:59:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 655 states have (on average 1.5862595419847327) internal successors, (1039), 655 states have internal predecessors, (1039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:53,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1043 transitions. [2022-02-23 19:59:53,351 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1043 transitions. Word has length 132 [2022-02-23 19:59:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:53,351 INFO L470 AbstractCegarLoop]: Abstraction has 660 states and 1043 transitions. [2022-02-23 19:59:53,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:53,351 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1043 transitions. [2022-02-23 19:59:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-23 19:59:53,352 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:53,352 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:53,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 19:59:53,352 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:53,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:53,353 INFO L85 PathProgramCache]: Analyzing trace with hash 348642629, now seen corresponding path program 1 times [2022-02-23 19:59:53,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:53,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727467219] [2022-02-23 19:59:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:53,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 19:59:53,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:53,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727467219] [2022-02-23 19:59:53,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727467219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:53,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:53,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:59:53,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706241654] [2022-02-23 19:59:53,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:53,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:59:53,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:53,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:59:53,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:59:53,489 INFO L87 Difference]: Start difference. First operand 660 states and 1043 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:55,503 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 [] [2022-02-23 19:59:55,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:55,770 INFO L93 Difference]: Finished difference Result 933 states and 1473 transitions. [2022-02-23 19:59:55,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:59:55,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-23 19:59:55,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:55,773 INFO L225 Difference]: With dead ends: 933 [2022-02-23 19:59:55,773 INFO L226 Difference]: Without dead ends: 933 [2022-02-23 19:59:55,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:59:55,773 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:55,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 19:59:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-02-23 19:59:55,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 933. [2022-02-23 19:59:55,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.5829741379310345) internal successors, (1469), 928 states have internal predecessors, (1469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1473 transitions. [2022-02-23 19:59:55,784 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1473 transitions. Word has length 132 [2022-02-23 19:59:55,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:55,784 INFO L470 AbstractCegarLoop]: Abstraction has 933 states and 1473 transitions. [2022-02-23 19:59:55,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:55,785 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1473 transitions. [2022-02-23 19:59:55,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-23 19:59:55,786 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:55,786 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:55,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 19:59:55,786 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash -2018872788, now seen corresponding path program 1 times [2022-02-23 19:59:55,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:55,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749077459] [2022-02-23 19:59:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:55,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:55,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-23 19:59:55,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:55,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749077459] [2022-02-23 19:59:55,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749077459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:55,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:55,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:59:55,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233457377] [2022-02-23 19:59:55,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:55,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:59:55,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:55,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:59:55,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:59:55,861 INFO L87 Difference]: Start difference. First operand 933 states and 1473 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:57,877 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 [] [2022-02-23 19:59:58,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 19:59:58,102 INFO L93 Difference]: Finished difference Result 960 states and 1508 transitions. [2022-02-23 19:59:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 19:59:58,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-23 19:59:58,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 19:59:58,105 INFO L225 Difference]: With dead ends: 960 [2022-02-23 19:59:58,105 INFO L226 Difference]: Without dead ends: 960 [2022-02-23 19:59:58,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:59:58,105 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 19:59:58,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 19:59:58,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-02-23 19:59:58,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-02-23 19:59:58,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.574869109947644) internal successors, (1504), 955 states have internal predecessors, (1504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:58,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1508 transitions. [2022-02-23 19:59:58,131 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1508 transitions. Word has length 133 [2022-02-23 19:59:58,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 19:59:58,131 INFO L470 AbstractCegarLoop]: Abstraction has 960 states and 1508 transitions. [2022-02-23 19:59:58,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 19:59:58,131 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1508 transitions. [2022-02-23 19:59:58,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-23 19:59:58,133 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 19:59:58,133 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 19:59:58,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 19:59:58,133 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 19:59:58,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 19:59:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash -942319379, now seen corresponding path program 1 times [2022-02-23 19:59:58,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 19:59:58,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259182654] [2022-02-23 19:59:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 19:59:58,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 19:59:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:58,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 19:59:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 19:59:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-23 19:59:58,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 19:59:58,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259182654] [2022-02-23 19:59:58,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259182654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 19:59:58,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 19:59:58,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 19:59:58,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158837860] [2022-02-23 19:59:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 19:59:58,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 19:59:58,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 19:59:58,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 19:59:58,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 19:59:58,240 INFO L87 Difference]: Start difference. First operand 960 states and 1508 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:00,252 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 [] [2022-02-23 20:00:00,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:00,503 INFO L93 Difference]: Finished difference Result 962 states and 1510 transitions. [2022-02-23 20:00:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:00:00,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-23 20:00:00,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:00,505 INFO L225 Difference]: With dead ends: 962 [2022-02-23 20:00:00,505 INFO L226 Difference]: Without dead ends: 962 [2022-02-23 20:00:00,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:00:00,506 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:00,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:00:00,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-02-23 20:00:00,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-02-23 20:00:00,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.573667711598746) internal successors, (1506), 957 states have internal predecessors, (1506), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:00,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1510 transitions. [2022-02-23 20:00:00,527 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1510 transitions. Word has length 133 [2022-02-23 20:00:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:00,527 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1510 transitions. [2022-02-23 20:00:00,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1510 transitions. [2022-02-23 20:00:00,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-23 20:00:00,529 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:00,529 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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] [2022-02-23 20:00:00,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 20:00:00,529 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:00,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1318648105, now seen corresponding path program 1 times [2022-02-23 20:00:00,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:00,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951058278] [2022-02-23 20:00:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:00,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-23 20:00:00,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:00,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951058278] [2022-02-23 20:00:00,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951058278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:00,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:00,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:00,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216869840] [2022-02-23 20:00:00,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:00,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:00,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:00,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:00,638 INFO L87 Difference]: Start difference. First operand 962 states and 1510 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:02,651 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 [] [2022-02-23 20:00:03,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:03,162 INFO L93 Difference]: Finished difference Result 1063 states and 1638 transitions. [2022-02-23 20:00:03,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:03,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-23 20:00:03,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:03,165 INFO L225 Difference]: With dead ends: 1063 [2022-02-23 20:00:03,165 INFO L226 Difference]: Without dead ends: 1063 [2022-02-23 20:00:03,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:03,166 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 97 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:03,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 624 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 20:00:03,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-02-23 20:00:03,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 962. [2022-02-23 20:00:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5715778474399165) internal successors, (1504), 957 states have internal predecessors, (1504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:03,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1508 transitions. [2022-02-23 20:00:03,187 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1508 transitions. Word has length 196 [2022-02-23 20:00:03,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:03,187 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1508 transitions. [2022-02-23 20:00:03,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1508 transitions. [2022-02-23 20:00:03,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-23 20:00:03,190 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:03,190 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:03,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 20:00:03,191 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:03,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:03,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1012366808, now seen corresponding path program 1 times [2022-02-23 20:00:03,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:03,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027396243] [2022-02-23 20:00:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:03,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:03,297 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-23 20:00:03,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:03,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027396243] [2022-02-23 20:00:03,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027396243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:03,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:03,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:03,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767331843] [2022-02-23 20:00:03,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:03,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:03,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:03,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:03,298 INFO L87 Difference]: Start difference. First operand 962 states and 1508 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:05,307 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 [] [2022-02-23 20:00:05,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:05,818 INFO L93 Difference]: Finished difference Result 1053 states and 1622 transitions. [2022-02-23 20:00:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:05,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-02-23 20:00:05,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:05,821 INFO L225 Difference]: With dead ends: 1053 [2022-02-23 20:00:05,821 INFO L226 Difference]: Without dead ends: 1053 [2022-02-23 20:00:05,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:05,822 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 89 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:05,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 614 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 586 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 20:00:05,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-02-23 20:00:05,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 962. [2022-02-23 20:00:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5694879832810866) internal successors, (1502), 957 states have internal predecessors, (1502), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1506 transitions. [2022-02-23 20:00:05,835 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1506 transitions. Word has length 197 [2022-02-23 20:00:05,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:05,835 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1506 transitions. [2022-02-23 20:00:05,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1506 transitions. [2022-02-23 20:00:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-02-23 20:00:05,837 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:05,837 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2022-02-23 20:00:05,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 20:00:05,837 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:05,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2003849284, now seen corresponding path program 1 times [2022-02-23 20:00:05,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:05,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835225529] [2022-02-23 20:00:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:05,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:05,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:05,946 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:05,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:05,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835225529] [2022-02-23 20:00:05,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835225529] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:05,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:05,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:05,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198959516] [2022-02-23 20:00:05,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:05,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:05,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:05,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:05,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:05,948 INFO L87 Difference]: Start difference. First operand 962 states and 1506 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:07,963 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 [] [2022-02-23 20:00:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:08,379 INFO L93 Difference]: Finished difference Result 1158 states and 1753 transitions. [2022-02-23 20:00:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:08,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 211 [2022-02-23 20:00:08,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:08,382 INFO L225 Difference]: With dead ends: 1158 [2022-02-23 20:00:08,382 INFO L226 Difference]: Without dead ends: 1158 [2022-02-23 20:00:08,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:08,383 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 135 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:08,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-02-23 20:00:08,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 962. [2022-02-23 20:00:08,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.554858934169279) internal successors, (1488), 957 states have internal predecessors, (1488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:08,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1492 transitions. [2022-02-23 20:00:08,393 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1492 transitions. Word has length 211 [2022-02-23 20:00:08,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:08,393 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1492 transitions. [2022-02-23 20:00:08,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:08,394 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1492 transitions. [2022-02-23 20:00:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-23 20:00:08,395 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:08,395 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2022-02-23 20:00:08,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 20:00:08,396 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:08,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:08,396 INFO L85 PathProgramCache]: Analyzing trace with hash -642847624, now seen corresponding path program 1 times [2022-02-23 20:00:08,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:08,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412420866] [2022-02-23 20:00:08,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:08,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:08,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:08,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412420866] [2022-02-23 20:00:08,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412420866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:08,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:08,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:08,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712633089] [2022-02-23 20:00:08,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:08,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:08,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:08,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:08,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:08,572 INFO L87 Difference]: Start difference. First operand 962 states and 1492 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:10,590 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 [] [2022-02-23 20:00:10,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:10,989 INFO L93 Difference]: Finished difference Result 1158 states and 1739 transitions. [2022-02-23 20:00:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:10,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-23 20:00:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:11,007 INFO L225 Difference]: With dead ends: 1158 [2022-02-23 20:00:11,007 INFO L226 Difference]: Without dead ends: 1158 [2022-02-23 20:00:11,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:11,008 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 132 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:11,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:11,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-02-23 20:00:11,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 962. [2022-02-23 20:00:11,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5402298850574712) internal successors, (1474), 957 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1478 transitions. [2022-02-23 20:00:11,031 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1478 transitions. Word has length 213 [2022-02-23 20:00:11,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:11,031 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1478 transitions. [2022-02-23 20:00:11,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1478 transitions. [2022-02-23 20:00:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-23 20:00:11,033 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:11,033 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:11,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 20:00:11,033 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:11,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:11,034 INFO L85 PathProgramCache]: Analyzing trace with hash 554678676, now seen corresponding path program 1 times [2022-02-23 20:00:11,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:11,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563446437] [2022-02-23 20:00:11,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:11,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:11,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:11,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563446437] [2022-02-23 20:00:11,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563446437] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:11,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:11,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:11,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299688368] [2022-02-23 20:00:11,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:11,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:11,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:11,141 INFO L87 Difference]: Start difference. First operand 962 states and 1478 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:13,155 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 [] [2022-02-23 20:00:13,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:13,608 INFO L93 Difference]: Finished difference Result 1284 states and 1934 transitions. [2022-02-23 20:00:13,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:13,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-23 20:00:13,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:13,612 INFO L225 Difference]: With dead ends: 1284 [2022-02-23 20:00:13,612 INFO L226 Difference]: Without dead ends: 1284 [2022-02-23 20:00:13,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:13,617 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 118 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:13,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 357 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-02-23 20:00:13,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1019. [2022-02-23 20:00:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1014 states have (on average 1.5157790927021697) internal successors, (1537), 1014 states have internal predecessors, (1537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1541 transitions. [2022-02-23 20:00:13,629 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1541 transitions. Word has length 213 [2022-02-23 20:00:13,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:13,629 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1541 transitions. [2022-02-23 20:00:13,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1541 transitions. [2022-02-23 20:00:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-23 20:00:13,631 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:13,631 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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] [2022-02-23 20:00:13,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 20:00:13,632 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash -133422725, now seen corresponding path program 1 times [2022-02-23 20:00:13,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:13,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644287273] [2022-02-23 20:00:13,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:13,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:13,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:13,765 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:13,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:13,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644287273] [2022-02-23 20:00:13,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644287273] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:13,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:13,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:13,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303935814] [2022-02-23 20:00:13,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:13,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:13,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:13,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:13,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:13,767 INFO L87 Difference]: Start difference. First operand 1019 states and 1541 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:15,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:00:16,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:16,103 INFO L93 Difference]: Finished difference Result 1185 states and 1746 transitions. [2022-02-23 20:00:16,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:16,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-02-23 20:00:16,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:16,107 INFO L225 Difference]: With dead ends: 1185 [2022-02-23 20:00:16,107 INFO L226 Difference]: Without dead ends: 1185 [2022-02-23 20:00:16,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:16,107 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 123 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:16,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 338 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:00:16,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-02-23 20:00:16,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1019. [2022-02-23 20:00:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1014 states have (on average 1.4990138067061145) internal successors, (1520), 1014 states have internal predecessors, (1520), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:16,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1524 transitions. [2022-02-23 20:00:16,118 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1524 transitions. Word has length 214 [2022-02-23 20:00:16,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:16,118 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1524 transitions. [2022-02-23 20:00:16,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:16,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1524 transitions. [2022-02-23 20:00:16,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-23 20:00:16,120 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:16,120 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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, 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] [2022-02-23 20:00:16,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 20:00:16,120 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:16,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:16,121 INFO L85 PathProgramCache]: Analyzing trace with hash -168214403, now seen corresponding path program 1 times [2022-02-23 20:00:16,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:16,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205238880] [2022-02-23 20:00:16,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:16,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:16,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:16,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:16,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205238880] [2022-02-23 20:00:16,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205238880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:16,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:16,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:16,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184476374] [2022-02-23 20:00:16,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:16,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:16,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:16,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:16,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:16,240 INFO L87 Difference]: Start difference. First operand 1019 states and 1524 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:18,257 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 [] [2022-02-23 20:00:18,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:18,694 INFO L93 Difference]: Finished difference Result 1254 states and 1863 transitions. [2022-02-23 20:00:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:18,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-02-23 20:00:18,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:18,698 INFO L225 Difference]: With dead ends: 1254 [2022-02-23 20:00:18,698 INFO L226 Difference]: Without dead ends: 1254 [2022-02-23 20:00:18,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:18,698 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 117 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:18,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 338 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-02-23 20:00:18,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1022. [2022-02-23 20:00:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1017 states have (on average 1.4857423795476892) internal successors, (1511), 1017 states have internal predecessors, (1511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1515 transitions. [2022-02-23 20:00:18,708 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1515 transitions. Word has length 214 [2022-02-23 20:00:18,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:18,708 INFO L470 AbstractCegarLoop]: Abstraction has 1022 states and 1515 transitions. [2022-02-23 20:00:18,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:18,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1515 transitions. [2022-02-23 20:00:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-02-23 20:00:18,710 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:18,710 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 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, 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] [2022-02-23 20:00:18,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 20:00:18,711 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:18,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:18,711 INFO L85 PathProgramCache]: Analyzing trace with hash -443142085, now seen corresponding path program 1 times [2022-02-23 20:00:18,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:18,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446020566] [2022-02-23 20:00:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:18,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:18,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:18,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446020566] [2022-02-23 20:00:18,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446020566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:18,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:18,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:18,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179008538] [2022-02-23 20:00:18,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:18,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:18,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:18,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:18,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:18,825 INFO L87 Difference]: Start difference. First operand 1022 states and 1515 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:20,835 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 [] [2022-02-23 20:00:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:21,256 INFO L93 Difference]: Finished difference Result 1312 states and 1921 transitions. [2022-02-23 20:00:21,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:21,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-02-23 20:00:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:21,260 INFO L225 Difference]: With dead ends: 1312 [2022-02-23 20:00:21,260 INFO L226 Difference]: Without dead ends: 1312 [2022-02-23 20:00:21,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:21,262 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 116 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:21,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 342 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-02-23 20:00:21,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1083. [2022-02-23 20:00:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4610389610389611) internal successors, (1575), 1078 states have internal predecessors, (1575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:21,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1579 transitions. [2022-02-23 20:00:21,274 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1579 transitions. Word has length 215 [2022-02-23 20:00:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:21,274 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1579 transitions. [2022-02-23 20:00:21,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:21,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1579 transitions. [2022-02-23 20:00:21,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-02-23 20:00:21,276 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:21,277 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:21,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 20:00:21,277 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:21,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:21,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1150066281, now seen corresponding path program 1 times [2022-02-23 20:00:21,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:21,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720695170] [2022-02-23 20:00:21,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:21,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:21,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:21,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720695170] [2022-02-23 20:00:21,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720695170] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:21,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:21,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:21,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705604550] [2022-02-23 20:00:21,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:21,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:21,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:21,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:21,385 INFO L87 Difference]: Start difference. First operand 1083 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:23,395 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 [] [2022-02-23 20:00:23,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:23,841 INFO L93 Difference]: Finished difference Result 1147 states and 1659 transitions. [2022-02-23 20:00:23,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:23,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-02-23 20:00:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:23,844 INFO L225 Difference]: With dead ends: 1147 [2022-02-23 20:00:23,844 INFO L226 Difference]: Without dead ends: 1147 [2022-02-23 20:00:23,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:23,844 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 72 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:23,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 584 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 541 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:23,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-02-23 20:00:23,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1083. [2022-02-23 20:00:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4591836734693877) internal successors, (1573), 1078 states have internal predecessors, (1573), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1577 transitions. [2022-02-23 20:00:23,854 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1577 transitions. Word has length 218 [2022-02-23 20:00:23,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:23,854 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1577 transitions. [2022-02-23 20:00:23,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:23,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1577 transitions. [2022-02-23 20:00:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-02-23 20:00:23,856 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:23,856 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:23,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 20:00:23,856 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:23,857 INFO L85 PathProgramCache]: Analyzing trace with hash -546969239, now seen corresponding path program 1 times [2022-02-23 20:00:23,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:23,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23413473] [2022-02-23 20:00:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:23,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:23,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:23,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23413473] [2022-02-23 20:00:23,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23413473] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:23,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:23,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:23,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759006139] [2022-02-23 20:00:23,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:23,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:23,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:23,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:23,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:23,966 INFO L87 Difference]: Start difference. First operand 1083 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:25,979 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 [] [2022-02-23 20:00:26,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:26,387 INFO L93 Difference]: Finished difference Result 1139 states and 1647 transitions. [2022-02-23 20:00:26,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:26,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-02-23 20:00:26,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:26,391 INFO L225 Difference]: With dead ends: 1139 [2022-02-23 20:00:26,391 INFO L226 Difference]: Without dead ends: 1139 [2022-02-23 20:00:26,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:26,393 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 66 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:26,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 576 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:26,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-02-23 20:00:26,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1083. [2022-02-23 20:00:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4573283858998145) internal successors, (1571), 1078 states have internal predecessors, (1571), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:26,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1575 transitions. [2022-02-23 20:00:26,410 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1575 transitions. Word has length 219 [2022-02-23 20:00:26,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:26,410 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1575 transitions. [2022-02-23 20:00:26,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:26,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1575 transitions. [2022-02-23 20:00:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-02-23 20:00:26,432 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:26,433 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:26,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 20:00:26,433 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:26,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:26,433 INFO L85 PathProgramCache]: Analyzing trace with hash -547343874, now seen corresponding path program 1 times [2022-02-23 20:00:26,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:26,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793826057] [2022-02-23 20:00:26,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:26,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:26,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:26,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793826057] [2022-02-23 20:00:26,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793826057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:26,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:26,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:26,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237112688] [2022-02-23 20:00:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:26,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:26,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:26,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:26,548 INFO L87 Difference]: Start difference. First operand 1083 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:28,556 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 [] [2022-02-23 20:00:28,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:28,997 INFO L93 Difference]: Finished difference Result 1139 states and 1645 transitions. [2022-02-23 20:00:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:29,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 221 [2022-02-23 20:00:29,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:29,005 INFO L225 Difference]: With dead ends: 1139 [2022-02-23 20:00:29,005 INFO L226 Difference]: Without dead ends: 1139 [2022-02-23 20:00:29,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:29,005 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:29,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 574 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-02-23 20:00:29,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1083. [2022-02-23 20:00:29,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.455473098330241) internal successors, (1569), 1078 states have internal predecessors, (1569), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:29,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1573 transitions. [2022-02-23 20:00:29,014 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1573 transitions. Word has length 221 [2022-02-23 20:00:29,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:29,014 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1573 transitions. [2022-02-23 20:00:29,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:29,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1573 transitions. [2022-02-23 20:00:29,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-02-23 20:00:29,016 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:29,016 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:29,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 20:00:29,017 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:29,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:29,018 INFO L85 PathProgramCache]: Analyzing trace with hash 29557597, now seen corresponding path program 1 times [2022-02-23 20:00:29,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:29,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257345417] [2022-02-23 20:00:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:29,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:29,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:29,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:29,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257345417] [2022-02-23 20:00:29,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257345417] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:29,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:29,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:29,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785778020] [2022-02-23 20:00:29,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:29,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:29,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:29,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:29,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:29,142 INFO L87 Difference]: Start difference. First operand 1083 states and 1573 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:31,155 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 [] [2022-02-23 20:00:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:31,491 INFO L93 Difference]: Finished difference Result 1249 states and 1784 transitions. [2022-02-23 20:00:31,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:31,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-02-23 20:00:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:31,495 INFO L225 Difference]: With dead ends: 1249 [2022-02-23 20:00:31,495 INFO L226 Difference]: Without dead ends: 1249 [2022-02-23 20:00:31,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:31,498 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 108 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:31,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:00:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-23 20:00:31,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-02-23 20:00:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4452690166975881) internal successors, (1558), 1078 states have internal predecessors, (1558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1562 transitions. [2022-02-23 20:00:31,507 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1562 transitions. Word has length 222 [2022-02-23 20:00:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:31,508 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1562 transitions. [2022-02-23 20:00:31,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1562 transitions. [2022-02-23 20:00:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-23 20:00:31,509 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:31,509 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:31,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 20:00:31,510 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:31,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1817226739, now seen corresponding path program 1 times [2022-02-23 20:00:31,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:31,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784142040] [2022-02-23 20:00:31,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:31,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:31,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:31,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784142040] [2022-02-23 20:00:31,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784142040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:31,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:31,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:31,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512497658] [2022-02-23 20:00:31,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:31,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:31,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:31,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:31,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:31,658 INFO L87 Difference]: Start difference. First operand 1083 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:33,671 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 [] [2022-02-23 20:00:34,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:34,056 INFO L93 Difference]: Finished difference Result 1123 states and 1606 transitions. [2022-02-23 20:00:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:34,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2022-02-23 20:00:34,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:34,059 INFO L225 Difference]: With dead ends: 1123 [2022-02-23 20:00:34,059 INFO L226 Difference]: Without dead ends: 1123 [2022-02-23 20:00:34,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:34,060 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 49 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:34,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 562 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:34,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-02-23 20:00:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1083. [2022-02-23 20:00:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.443413729128015) internal successors, (1556), 1078 states have internal predecessors, (1556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:34,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1560 transitions. [2022-02-23 20:00:34,069 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1560 transitions. Word has length 223 [2022-02-23 20:00:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:34,070 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1560 transitions. [2022-02-23 20:00:34,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:34,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1560 transitions. [2022-02-23 20:00:34,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-23 20:00:34,071 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:34,072 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:34,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 20:00:34,072 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:34,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:34,072 INFO L85 PathProgramCache]: Analyzing trace with hash 938283475, now seen corresponding path program 1 times [2022-02-23 20:00:34,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:34,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273183243] [2022-02-23 20:00:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:34,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:34,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:34,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273183243] [2022-02-23 20:00:34,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273183243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:34,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:34,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:34,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317596123] [2022-02-23 20:00:34,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:34,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:34,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:34,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:34,176 INFO L87 Difference]: Start difference. First operand 1083 states and 1560 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-02-23 20:00:36,195 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 [] [2022-02-23 20:00:36,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:36,606 INFO L93 Difference]: Finished difference Result 1123 states and 1604 transitions. [2022-02-23 20:00:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:36,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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 224 [2022-02-23 20:00:36,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:36,609 INFO L225 Difference]: With dead ends: 1123 [2022-02-23 20:00:36,609 INFO L226 Difference]: Without dead ends: 1123 [2022-02-23 20:00:36,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:36,609 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 52 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:36,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 560 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-02-23 20:00:36,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1083. [2022-02-23 20:00:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4415584415584415) internal successors, (1554), 1078 states have internal predecessors, (1554), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:36,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1558 transitions. [2022-02-23 20:00:36,623 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1558 transitions. Word has length 224 [2022-02-23 20:00:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:36,623 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1558 transitions. [2022-02-23 20:00:36,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-02-23 20:00:36,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1558 transitions. [2022-02-23 20:00:36,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-23 20:00:36,625 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:36,625 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:36,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 20:00:36,625 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:36,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:36,626 INFO L85 PathProgramCache]: Analyzing trace with hash -249721456, now seen corresponding path program 1 times [2022-02-23 20:00:36,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:36,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982940220] [2022-02-23 20:00:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:36,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:36,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:36,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982940220] [2022-02-23 20:00:36,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982940220] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:36,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:36,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:36,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524796680] [2022-02-23 20:00:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:36,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:36,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:36,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:36,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:36,774 INFO L87 Difference]: Start difference. First operand 1083 states and 1558 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-02-23 20:00:38,787 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 [] [2022-02-23 20:00:39,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:39,184 INFO L93 Difference]: Finished difference Result 1119 states and 1598 transitions. [2022-02-23 20:00:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:39,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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 224 [2022-02-23 20:00:39,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:39,186 INFO L225 Difference]: With dead ends: 1119 [2022-02-23 20:00:39,186 INFO L226 Difference]: Without dead ends: 1119 [2022-02-23 20:00:39,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:39,186 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 45 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:39,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 556 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2022-02-23 20:00:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1083. [2022-02-23 20:00:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4397031539888683) internal successors, (1552), 1078 states have internal predecessors, (1552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1556 transitions. [2022-02-23 20:00:39,198 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1556 transitions. Word has length 224 [2022-02-23 20:00:39,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:39,198 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1556 transitions. [2022-02-23 20:00:39,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 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) [2022-02-23 20:00:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1556 transitions. [2022-02-23 20:00:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-02-23 20:00:39,200 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:39,200 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:39,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 20:00:39,200 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:39,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1302900628, now seen corresponding path program 1 times [2022-02-23 20:00:39,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:39,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986691366] [2022-02-23 20:00:39,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:39,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:39,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:39,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986691366] [2022-02-23 20:00:39,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986691366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:39,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:39,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:39,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783301684] [2022-02-23 20:00:39,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:39,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:39,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:39,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:39,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:39,305 INFO L87 Difference]: Start difference. First operand 1083 states and 1556 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:41,312 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 [] [2022-02-23 20:00:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:41,726 INFO L93 Difference]: Finished difference Result 1249 states and 1767 transitions. [2022-02-23 20:00:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-02-23 20:00:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:41,728 INFO L225 Difference]: With dead ends: 1249 [2022-02-23 20:00:41,728 INFO L226 Difference]: Without dead ends: 1249 [2022-02-23 20:00:41,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:41,729 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 109 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:41,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:41,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-23 20:00:41,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-02-23 20:00:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4294990723562153) internal successors, (1541), 1078 states have internal predecessors, (1541), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1545 transitions. [2022-02-23 20:00:41,738 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1545 transitions. Word has length 225 [2022-02-23 20:00:41,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:41,738 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1545 transitions. [2022-02-23 20:00:41,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:41,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1545 transitions. [2022-02-23 20:00:41,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-23 20:00:41,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:41,749 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:41,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-23 20:00:41,750 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:41,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:41,751 INFO L85 PathProgramCache]: Analyzing trace with hash 519324707, now seen corresponding path program 1 times [2022-02-23 20:00:41,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:41,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449019862] [2022-02-23 20:00:41,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:41,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:41,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:41,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449019862] [2022-02-23 20:00:41,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449019862] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:41,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:41,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:41,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410343813] [2022-02-23 20:00:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:41,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:41,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:41,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:41,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:41,873 INFO L87 Difference]: Start difference. First operand 1083 states and 1545 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:43,881 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 [] [2022-02-23 20:00:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:44,260 INFO L93 Difference]: Finished difference Result 1115 states and 1579 transitions. [2022-02-23 20:00:44,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:44,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2022-02-23 20:00:44,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:44,262 INFO L225 Difference]: With dead ends: 1115 [2022-02-23 20:00:44,262 INFO L226 Difference]: Without dead ends: 1115 [2022-02-23 20:00:44,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:44,263 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 40 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:44,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 552 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:44,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2022-02-23 20:00:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1083. [2022-02-23 20:00:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.427643784786642) internal successors, (1539), 1078 states have internal predecessors, (1539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:44,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1543 transitions. [2022-02-23 20:00:44,272 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1543 transitions. Word has length 227 [2022-02-23 20:00:44,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:44,272 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1543 transitions. [2022-02-23 20:00:44,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1543 transitions. [2022-02-23 20:00:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-23 20:00:44,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:44,274 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:44,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 20:00:44,274 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:44,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash -2136203219, now seen corresponding path program 1 times [2022-02-23 20:00:44,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:44,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388975292] [2022-02-23 20:00:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:44,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:44,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:44,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388975292] [2022-02-23 20:00:44,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388975292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:44,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:44,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:44,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734120296] [2022-02-23 20:00:44,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:44,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:44,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:44,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:44,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:44,398 INFO L87 Difference]: Start difference. First operand 1083 states and 1543 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:46,405 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 [] [2022-02-23 20:00:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:46,820 INFO L93 Difference]: Finished difference Result 1249 states and 1757 transitions. [2022-02-23 20:00:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:46,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-02-23 20:00:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:46,822 INFO L225 Difference]: With dead ends: 1249 [2022-02-23 20:00:46,822 INFO L226 Difference]: Without dead ends: 1249 [2022-02-23 20:00:46,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:46,822 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 101 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:46,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-02-23 20:00:46,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-02-23 20:00:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4202226345083488) internal successors, (1531), 1078 states have internal predecessors, (1531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1535 transitions. [2022-02-23 20:00:46,831 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1535 transitions. Word has length 228 [2022-02-23 20:00:46,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:46,831 INFO L470 AbstractCegarLoop]: Abstraction has 1083 states and 1535 transitions. [2022-02-23 20:00:46,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1535 transitions. [2022-02-23 20:00:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-02-23 20:00:46,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:46,834 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:46,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 20:00:46,834 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:46,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:46,834 INFO L85 PathProgramCache]: Analyzing trace with hash 2097942340, now seen corresponding path program 1 times [2022-02-23 20:00:46,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:46,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504354214] [2022-02-23 20:00:46,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:46,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:46,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:46,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:46,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504354214] [2022-02-23 20:00:46,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504354214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:46,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:46,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:46,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506263892] [2022-02-23 20:00:46,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:46,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:46,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:46,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:46,958 INFO L87 Difference]: Start difference. First operand 1083 states and 1535 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:48,971 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 [] [2022-02-23 20:00:49,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:49,385 INFO L93 Difference]: Finished difference Result 1375 states and 1938 transitions. [2022-02-23 20:00:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:49,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-02-23 20:00:49,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:49,388 INFO L225 Difference]: With dead ends: 1375 [2022-02-23 20:00:49,388 INFO L226 Difference]: Without dead ends: 1375 [2022-02-23 20:00:49,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:49,389 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 99 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:49,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 340 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:00:49,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2022-02-23 20:00:49,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1188. [2022-02-23 20:00:49,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1183 states have (on average 1.4142011834319526) internal successors, (1673), 1183 states have internal predecessors, (1673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1677 transitions. [2022-02-23 20:00:49,414 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1677 transitions. Word has length 228 [2022-02-23 20:00:49,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:49,415 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 1677 transitions. [2022-02-23 20:00:49,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1677 transitions. [2022-02-23 20:00:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-02-23 20:00:49,417 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:49,417 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:49,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 20:00:49,417 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:49,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:49,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1089527269, now seen corresponding path program 1 times [2022-02-23 20:00:49,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:49,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634504381] [2022-02-23 20:00:49,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:49,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:49,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:49,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634504381] [2022-02-23 20:00:49,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634504381] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:49,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:49,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:49,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809338158] [2022-02-23 20:00:49,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:49,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:49,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:49,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:49,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:49,638 INFO L87 Difference]: Start difference. First operand 1188 states and 1677 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:51,651 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 [] [2022-02-23 20:00:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:52,000 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2022-02-23 20:00:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:52,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2022-02-23 20:00:52,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:52,002 INFO L225 Difference]: With dead ends: 1208 [2022-02-23 20:00:52,002 INFO L226 Difference]: Without dead ends: 1208 [2022-02-23 20:00:52,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:52,003 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:52,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 538 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:00:52,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-02-23 20:00:52,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1188. [2022-02-23 20:00:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1183 states have (on average 1.4125105663567201) internal successors, (1671), 1183 states have internal predecessors, (1671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1675 transitions. [2022-02-23 20:00:52,029 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1675 transitions. Word has length 229 [2022-02-23 20:00:52,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:00:52,029 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 1675 transitions. [2022-02-23 20:00:52,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1675 transitions. [2022-02-23 20:00:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-23 20:00:52,031 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:00:52,031 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:00:52,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-23 20:00:52,031 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:00:52,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:00:52,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1676322048, now seen corresponding path program 1 times [2022-02-23 20:00:52,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:00:52,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328317045] [2022-02-23 20:00:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:00:52,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:00:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:00:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:00:52,207 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:00:52,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:00:52,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328317045] [2022-02-23 20:00:52,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328317045] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:00:52,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:00:52,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:00:52,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208558334] [2022-02-23 20:00:52,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:00:52,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:00:52,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:00:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:00:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:00:52,208 INFO L87 Difference]: Start difference. First operand 1188 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:00:53,501 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 [] [2022-02-23 20:00:55,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:00:57,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:00:59,556 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 [] [2022-02-23 20:00:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:00:59,985 INFO L93 Difference]: Finished difference Result 1480 states and 2075 transitions. [2022-02-23 20:00:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:00:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-02-23 20:00:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:00:59,987 INFO L225 Difference]: With dead ends: 1480 [2022-02-23 20:00:59,987 INFO L226 Difference]: Without dead ends: 1480 [2022-02-23 20:00:59,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:00:59,988 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 97 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:00:59,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 340 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-23 20:00:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-02-23 20:00:59,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1299. [2022-02-23 20:00:59,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.4080370942812983) internal successors, (1822), 1294 states have internal predecessors, (1822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:00,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1826 transitions. [2022-02-23 20:01:00,000 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1826 transitions. Word has length 230 [2022-02-23 20:01:00,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:00,000 INFO L470 AbstractCegarLoop]: Abstraction has 1299 states and 1826 transitions. [2022-02-23 20:01:00,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1826 transitions. [2022-02-23 20:01:00,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-23 20:01:00,002 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:00,002 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:01:00,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-23 20:01:00,003 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:00,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:00,003 INFO L85 PathProgramCache]: Analyzing trace with hash -8501446, now seen corresponding path program 1 times [2022-02-23 20:01:00,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:00,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352234381] [2022-02-23 20:01:00,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:00,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:01:00,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:00,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352234381] [2022-02-23 20:01:00,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352234381] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:00,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:00,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:00,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535467802] [2022-02-23 20:01:00,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:00,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:00,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:00,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:00,136 INFO L87 Difference]: Start difference. First operand 1299 states and 1826 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:02,148 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 [] [2022-02-23 20:01:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:02,575 INFO L93 Difference]: Finished difference Result 1465 states and 2040 transitions. [2022-02-23 20:01:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:02,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-02-23 20:01:02,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:02,578 INFO L225 Difference]: With dead ends: 1465 [2022-02-23 20:01:02,578 INFO L226 Difference]: Without dead ends: 1465 [2022-02-23 20:01:02,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:02,578 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 96 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:02,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:01:02,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-02-23 20:01:02,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1299. [2022-02-23 20:01:02,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.401854714064915) internal successors, (1814), 1294 states have internal predecessors, (1814), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1818 transitions. [2022-02-23 20:01:02,589 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1818 transitions. Word has length 231 [2022-02-23 20:01:02,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:02,589 INFO L470 AbstractCegarLoop]: Abstraction has 1299 states and 1818 transitions. [2022-02-23 20:01:02,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:02,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1818 transitions. [2022-02-23 20:01:02,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-02-23 20:01:02,591 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:02,591 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:01:02,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-23 20:01:02,591 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:02,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:02,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1801789431, now seen corresponding path program 1 times [2022-02-23 20:01:02,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:02,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681818042] [2022-02-23 20:01:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:02,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:01:02,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:02,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681818042] [2022-02-23 20:01:02,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681818042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:02,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:02,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:02,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655119329] [2022-02-23 20:01:02,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:02,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:02,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:02,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:02,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:02,718 INFO L87 Difference]: Start difference. First operand 1299 states and 1818 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:04,725 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 [] [2022-02-23 20:01:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:05,158 INFO L93 Difference]: Finished difference Result 1690 states and 2353 transitions. [2022-02-23 20:01:05,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:05,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-02-23 20:01:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:05,161 INFO L225 Difference]: With dead ends: 1690 [2022-02-23 20:01:05,161 INFO L226 Difference]: Without dead ends: 1690 [2022-02-23 20:01:05,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:05,161 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 94 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:05,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 342 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:01:05,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-02-23 20:01:05,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1515. [2022-02-23 20:01:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 1.3986754966887418) internal successors, (2112), 1510 states have internal predecessors, (2112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2116 transitions. [2022-02-23 20:01:05,173 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2116 transitions. Word has length 234 [2022-02-23 20:01:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:05,173 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 2116 transitions. [2022-02-23 20:01:05,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2116 transitions. [2022-02-23 20:01:05,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-02-23 20:01:05,176 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:05,176 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:01:05,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-23 20:01:05,176 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:05,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:05,176 INFO L85 PathProgramCache]: Analyzing trace with hash -658958062, now seen corresponding path program 1 times [2022-02-23 20:01:05,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:05,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315022297] [2022-02-23 20:01:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:05,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-02-23 20:01:05,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:05,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315022297] [2022-02-23 20:01:05,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315022297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:05,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:05,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:05,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535778746] [2022-02-23 20:01:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:05,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:05,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:05,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:05,300 INFO L87 Difference]: Start difference. First operand 1515 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:07,315 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 [] [2022-02-23 20:01:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:07,711 INFO L93 Difference]: Finished difference Result 1681 states and 2330 transitions. [2022-02-23 20:01:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:07,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-02-23 20:01:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:07,714 INFO L225 Difference]: With dead ends: 1681 [2022-02-23 20:01:07,714 INFO L226 Difference]: Without dead ends: 1681 [2022-02-23 20:01:07,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:07,715 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 93 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:07,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 350 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:01:07,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2022-02-23 20:01:07,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1515. [2022-02-23 20:01:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 1.3933774834437087) internal successors, (2104), 1510 states have internal predecessors, (2104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2108 transitions. [2022-02-23 20:01:07,725 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2108 transitions. Word has length 235 [2022-02-23 20:01:07,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:07,727 INFO L470 AbstractCegarLoop]: Abstraction has 1515 states and 2108 transitions. [2022-02-23 20:01:07,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2108 transitions. [2022-02-23 20:01:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-23 20:01:07,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:07,729 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:01:07,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-23 20:01:07,729 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:07,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:07,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1135293253, now seen corresponding path program 1 times [2022-02-23 20:01:07,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:07,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845729260] [2022-02-23 20:01:07,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:07,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-23 20:01:08,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:08,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845729260] [2022-02-23 20:01:08,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845729260] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:08,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:08,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:01:08,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360708511] [2022-02-23 20:01:08,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:08,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:01:08,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:08,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:01:08,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:08,045 INFO L87 Difference]: Start difference. First operand 1515 states and 2108 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 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) [2022-02-23 20:01:10,054 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 [] [2022-02-23 20:01:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:10,805 INFO L93 Difference]: Finished difference Result 1983 states and 2735 transitions. [2022-02-23 20:01:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:01:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 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 239 [2022-02-23 20:01:10,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:10,808 INFO L225 Difference]: With dead ends: 1983 [2022-02-23 20:01:10,808 INFO L226 Difference]: Without dead ends: 1983 [2022-02-23 20:01:10,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-23 20:01:10,808 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 303 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:10,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 762 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 765 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-02-23 20:01:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-02-23 20:01:10,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1581. [2022-02-23 20:01:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1576 states have (on average 1.3826142131979695) internal successors, (2179), 1576 states have internal predecessors, (2179), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2183 transitions. [2022-02-23 20:01:10,841 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2183 transitions. Word has length 239 [2022-02-23 20:01:10,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:10,841 INFO L470 AbstractCegarLoop]: Abstraction has 1581 states and 2183 transitions. [2022-02-23 20:01:10,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 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) [2022-02-23 20:01:10,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2183 transitions. [2022-02-23 20:01:10,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-23 20:01:10,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:10,843 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:01:10,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-23 20:01:10,844 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2083120634, now seen corresponding path program 1 times [2022-02-23 20:01:10,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:10,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983610621] [2022-02-23 20:01:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:10,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:11,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 320 proven. 54 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-23 20:01:11,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:11,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983610621] [2022-02-23 20:01:11,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983610621] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:01:11,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74577438] [2022-02-23 20:01:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:11,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:01:11,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:01:11,192 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) [2022-02-23 20:01:11,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 20:01:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:12,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-23 20:01:12,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:01:12,264 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:01:12,265 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 [2022-02-23 20:01:12,379 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:01:12,379 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 [2022-02-23 20:01:12,504 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 [2022-02-23 20:01:12,529 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 [2022-02-23 20:01:12,532 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 [2022-02-23 20:01:12,575 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-23 20:01:12,576 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 32 treesize of output 54 [2022-02-23 20:01:12,624 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:01:12,624 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 [2022-02-23 20:01:12,798 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:01:12,798 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 [2022-02-23 20:01:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 301 proven. 54 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-23 20:01:12,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:01:13,175 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 76 treesize of output 52 [2022-02-23 20:01:13,178 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 52 treesize of output 40 [2022-02-23 20:01:15,248 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 186 treesize of output 168 [2022-02-23 20:01:15,385 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-23 20:01:15,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74577438] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:01:15,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:01:15,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 10] total 20 [2022-02-23 20:01:15,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715631249] [2022-02-23 20:01:15,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:15,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:01:15,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:15,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:01:15,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-02-23 20:01:15,387 INFO L87 Difference]: Start difference. First operand 1581 states and 2183 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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) [2022-02-23 20:01:17,394 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 [] [2022-02-23 20:01:19,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:21,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:23,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:23,908 INFO L93 Difference]: Finished difference Result 2376 states and 3262 transitions. [2022-02-23 20:01:23,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 20:01:23,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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 239 [2022-02-23 20:01:23,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:23,912 INFO L225 Difference]: With dead ends: 2376 [2022-02-23 20:01:23,912 INFO L226 Difference]: Without dead ends: 2376 [2022-02-23 20:01:23,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-02-23 20:01:23,913 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 221 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 192 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:23,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 996 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 625 Invalid, 3 Unknown, 192 Unchecked, 6.6s Time] [2022-02-23 20:01:23,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-02-23 20:01:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 2153. [2022-02-23 20:01:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2148 states have (on average 1.3803538175046555) internal successors, (2965), 2148 states have internal predecessors, (2965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:23,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2969 transitions. [2022-02-23 20:01:23,932 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2969 transitions. Word has length 239 [2022-02-23 20:01:23,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:23,933 INFO L470 AbstractCegarLoop]: Abstraction has 2153 states and 2969 transitions. [2022-02-23 20:01:23,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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) [2022-02-23 20:01:23,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2969 transitions. [2022-02-23 20:01:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-02-23 20:01:23,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:23,935 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:01:23,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-23 20:01:24,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-02-23 20:01:24,153 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash -875202459, now seen corresponding path program 1 times [2022-02-23 20:01:24,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:24,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716878938] [2022-02-23 20:01:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:24,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:24,346 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 262 proven. 36 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-23 20:01:24,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:24,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716878938] [2022-02-23 20:01:24,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716878938] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:01:24,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727704040] [2022-02-23 20:01:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:24,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:01:24,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:01:24,348 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) [2022-02-23 20:01:24,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 20:01:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:25,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-23 20:01:25,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:01:25,397 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:01:25,397 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 [2022-02-23 20:01:25,449 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:01:25,450 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 [2022-02-23 20:01:25,530 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 [2022-02-23 20:01:25,629 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 [2022-02-23 20:01:25,653 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:01:25,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 20:01:25,741 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 [2022-02-23 20:01:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 257 proven. 100 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-02-23 20:01:25,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:01:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-02-23 20:01:26,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727704040] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:01:26,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:01:26,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-23 20:01:26,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458430364] [2022-02-23 20:01:26,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:26,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:01:26,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:26,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:01:26,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 20:01:26,111 INFO L87 Difference]: Start difference. First operand 2153 states and 2969 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2022-02-23 20:01:28,116 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 [] [2022-02-23 20:01:28,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:28,404 INFO L93 Difference]: Finished difference Result 2392 states and 3291 transitions. [2022-02-23 20:01:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:01:28,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 239 [2022-02-23 20:01:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:28,408 INFO L225 Difference]: With dead ends: 2392 [2022-02-23 20:01:28,408 INFO L226 Difference]: Without dead ends: 2392 [2022-02-23 20:01:28,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 20:01:28,409 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:28,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 515 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:01:28,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2022-02-23 20:01:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2153. [2022-02-23 20:01:28,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2148 states have (on average 1.378026070763501) internal successors, (2960), 2148 states have internal predecessors, (2960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2964 transitions. [2022-02-23 20:01:28,427 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2964 transitions. Word has length 239 [2022-02-23 20:01:28,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:28,428 INFO L470 AbstractCegarLoop]: Abstraction has 2153 states and 2964 transitions. [2022-02-23 20:01:28,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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) [2022-02-23 20:01:28,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2964 transitions. [2022-02-23 20:01:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-23 20:01:28,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:28,431 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:01:28,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 20:01:28,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2022-02-23 20:01:28,653 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:28,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:28,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1893567372, now seen corresponding path program 1 times [2022-02-23 20:01:28,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:28,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532807352] [2022-02-23 20:01:28,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:28,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:28,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-23 20:01:28,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:28,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532807352] [2022-02-23 20:01:28,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532807352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:28,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:28,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:01:28,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167753646] [2022-02-23 20:01:28,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:28,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:01:28,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:28,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:01:28,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:28,861 INFO L87 Difference]: Start difference. First operand 2153 states and 2964 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:30,875 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 [] [2022-02-23 20:01:31,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:31,491 INFO L93 Difference]: Finished difference Result 2580 states and 3531 transitions. [2022-02-23 20:01:31,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:01:31,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-02-23 20:01:31,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:31,496 INFO L225 Difference]: With dead ends: 2580 [2022-02-23 20:01:31,496 INFO L226 Difference]: Without dead ends: 2580 [2022-02-23 20:01:31,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-23 20:01:31,497 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 277 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:31,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 750 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-23 20:01:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-02-23 20:01:31,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2156. [2022-02-23 20:01:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2151 states have (on average 1.3737796373779638) internal successors, (2955), 2151 states have internal predecessors, (2955), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2959 transitions. [2022-02-23 20:01:31,518 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2959 transitions. Word has length 240 [2022-02-23 20:01:31,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:31,519 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 2959 transitions. [2022-02-23 20:01:31,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:31,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2959 transitions. [2022-02-23 20:01:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-23 20:01:31,521 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:31,521 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:01:31,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-23 20:01:31,522 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:31,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1148700173, now seen corresponding path program 1 times [2022-02-23 20:01:31,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:31,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611490472] [2022-02-23 20:01:31,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:31,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:31,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-02-23 20:01:31,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:31,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611490472] [2022-02-23 20:01:31,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611490472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:31,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:31,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:31,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099669] [2022-02-23 20:01:31,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:31,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:31,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:31,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:31,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:31,641 INFO L87 Difference]: Start difference. First operand 2156 states and 2959 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:33,649 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 [] [2022-02-23 20:01:33,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:33,941 INFO L93 Difference]: Finished difference Result 2288 states and 3129 transitions. [2022-02-23 20:01:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:33,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-02-23 20:01:33,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:33,944 INFO L225 Difference]: With dead ends: 2288 [2022-02-23 20:01:33,944 INFO L226 Difference]: Without dead ends: 2288 [2022-02-23 20:01:33,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:33,945 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 22 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:33,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:01:33,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-02-23 20:01:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2252. [2022-02-23 20:01:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2247 states have (on average 1.3702714730752115) internal successors, (3079), 2247 states have internal predecessors, (3079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:33,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3083 transitions. [2022-02-23 20:01:33,962 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3083 transitions. Word has length 240 [2022-02-23 20:01:33,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:33,962 INFO L470 AbstractCegarLoop]: Abstraction has 2252 states and 3083 transitions. [2022-02-23 20:01:33,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3083 transitions. [2022-02-23 20:01:33,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-02-23 20:01:33,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:33,965 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:01:33,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-23 20:01:33,965 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:33,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash 906984683, now seen corresponding path program 1 times [2022-02-23 20:01:33,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:33,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795948275] [2022-02-23 20:01:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:33,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:34,238 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 323 proven. 55 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-23 20:01:34,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:34,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795948275] [2022-02-23 20:01:34,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795948275] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:01:34,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352070853] [2022-02-23 20:01:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:34,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:01:34,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:01:34,239 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) [2022-02-23 20:01:34,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 20:01:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:35,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-23 20:01:35,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:01:35,241 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:01:35,241 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 [2022-02-23 20:01:35,322 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:01:35,323 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 [2022-02-23 20:01:35,404 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 [2022-02-23 20:01:35,427 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 [2022-02-23 20:01:35,430 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 [2022-02-23 20:01:35,502 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-23 20:01:35,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-02-23 20:01:35,534 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:01:35,535 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 [2022-02-23 20:01:35,681 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:01:35,682 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 [2022-02-23 20:01:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 305 proven. 54 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-02-23 20:01:35,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:01:36,031 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 76 treesize of output 52 [2022-02-23 20:01:36,046 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 52 treesize of output 40 [2022-02-23 20:01:38,094 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 186 treesize of output 168 [2022-02-23 20:01:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-02-23 20:01:38,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352070853] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:01:38,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:01:38,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 10] total 20 [2022-02-23 20:01:38,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716571395] [2022-02-23 20:01:38,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:38,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:01:38,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:38,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:01:38,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-02-23 20:01:38,219 INFO L87 Difference]: Start difference. First operand 2252 states and 3083 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2022-02-23 20:01:40,225 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 [] [2022-02-23 20:01:42,249 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 [] [2022-02-23 20:01:44,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:44,786 INFO L93 Difference]: Finished difference Result 3712 states and 5060 transitions. [2022-02-23 20:01:44,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 20:01:44,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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 240 [2022-02-23 20:01:44,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:44,791 INFO L225 Difference]: With dead ends: 3712 [2022-02-23 20:01:44,791 INFO L226 Difference]: Without dead ends: 3712 [2022-02-23 20:01:44,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-23 20:01:44,792 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 320 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 84 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:44,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 813 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 493 Invalid, 2 Unknown, 182 Unchecked, 4.5s Time] [2022-02-23 20:01:44,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2022-02-23 20:01:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 2252. [2022-02-23 20:01:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2247 states have (on average 1.3702714730752115) internal successors, (3079), 2247 states have internal predecessors, (3079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3083 transitions. [2022-02-23 20:01:44,816 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3083 transitions. Word has length 240 [2022-02-23 20:01:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:44,816 INFO L470 AbstractCegarLoop]: Abstraction has 2252 states and 3083 transitions. [2022-02-23 20:01:44,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2022-02-23 20:01:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3083 transitions. [2022-02-23 20:01:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-02-23 20:01:44,819 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:44,820 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:01:44,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-23 20:01:45,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:01:45,035 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:45,036 INFO L85 PathProgramCache]: Analyzing trace with hash 609844275, now seen corresponding path program 1 times [2022-02-23 20:01:45,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:45,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794489447] [2022-02-23 20:01:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:45,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:45,208 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-02-23 20:01:45,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:45,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794489447] [2022-02-23 20:01:45,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794489447] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:45,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:45,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:45,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882112246] [2022-02-23 20:01:45,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:45,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:45,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:45,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:45,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:45,210 INFO L87 Difference]: Start difference. First operand 2252 states and 3083 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:47,217 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 [] [2022-02-23 20:01:47,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:47,571 INFO L93 Difference]: Finished difference Result 2425 states and 3313 transitions. [2022-02-23 20:01:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:47,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 262 [2022-02-23 20:01:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:47,574 INFO L225 Difference]: With dead ends: 2425 [2022-02-23 20:01:47,574 INFO L226 Difference]: Without dead ends: 2425 [2022-02-23 20:01:47,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:47,575 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 25 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:47,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 551 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:01:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-02-23 20:01:47,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2382. [2022-02-23 20:01:47,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2377 states have (on average 1.3689524610854018) internal successors, (3254), 2377 states have internal predecessors, (3254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3258 transitions. [2022-02-23 20:01:47,594 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3258 transitions. Word has length 262 [2022-02-23 20:01:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:47,595 INFO L470 AbstractCegarLoop]: Abstraction has 2382 states and 3258 transitions. [2022-02-23 20:01:47,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3258 transitions. [2022-02-23 20:01:47,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-23 20:01:47,598 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:47,598 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:01:47,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-23 20:01:47,598 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:47,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash 259054701, now seen corresponding path program 1 times [2022-02-23 20:01:47,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:47,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130522424] [2022-02-23 20:01:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:47,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:47,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-02-23 20:01:47,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:47,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130522424] [2022-02-23 20:01:47,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130522424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:47,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:47,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 20:01:47,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426407428] [2022-02-23 20:01:47,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:47,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:01:47,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:47,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:01:47,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-23 20:01:47,943 INFO L87 Difference]: Start difference. First operand 2382 states and 3258 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:49,952 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 [] [2022-02-23 20:01:50,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:50,389 INFO L93 Difference]: Finished difference Result 2390 states and 3268 transitions. [2022-02-23 20:01:50,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:01:50,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-02-23 20:01:50,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:50,397 INFO L225 Difference]: With dead ends: 2390 [2022-02-23 20:01:50,397 INFO L226 Difference]: Without dead ends: 2382 [2022-02-23 20:01:50,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-23 20:01:50,397 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:50,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:01:50,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2022-02-23 20:01:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2382. [2022-02-23 20:01:50,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2377 states have (on average 1.3685317627261253) internal successors, (3253), 2377 states have internal predecessors, (3253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:50,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3257 transitions. [2022-02-23 20:01:50,416 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3257 transitions. Word has length 268 [2022-02-23 20:01:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:50,416 INFO L470 AbstractCegarLoop]: Abstraction has 2382 states and 3257 transitions. [2022-02-23 20:01:50,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3257 transitions. [2022-02-23 20:01:50,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-23 20:01:50,419 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:50,419 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:01:50,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-23 20:01:50,419 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:50,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash 743691532, now seen corresponding path program 1 times [2022-02-23 20:01:50,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:50,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079174637] [2022-02-23 20:01:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:50,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:51,550 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 302 proven. 225 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-23 20:01:51,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:51,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079174637] [2022-02-23 20:01:51,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079174637] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:01:51,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60228176] [2022-02-23 20:01:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:51,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:01:51,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:01:51,552 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) [2022-02-23 20:01:51,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 20:01:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:52,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 210 conjunts are in the unsatisfiable core [2022-02-23 20:01:52,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:01:55,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:02:48,633 INFO L190 IndexEqualityManager]: detected not equals via solver