/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.13.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:49:15,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:49:15,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:49:15,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:49:15,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:49:15,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:49:15,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:49:15,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:49:15,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:49:15,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:49:15,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:49:15,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:49:15,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:49:15,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:49:15,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:49:15,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:49:15,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:49:15,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:49:15,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:49:15,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:49:15,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:49:15,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:49:15,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:49:15,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:49:15,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:49:15,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:49:15,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:49:15,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:49:15,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:49:15,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:49:15,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:49:15,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:49:15,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:49:15,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:49:15,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:49:15,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:49:15,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:49:15,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:49:15,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:49:15,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:49:15,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:49:15,667 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:49:15,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:49:15,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:49:15,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:49:15,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:49:15,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:49:15,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:49:15,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:49:15,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:49:15,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:49:15,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:49:15,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:49:15,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:49:15,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:49:15,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:49:15,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:49:15,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:49:15,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:49:15,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:49:15,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:49:15,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:49:15,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:49:15,682 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:49:15,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:49:15,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:49:15,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:49:15,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:49:15,878 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:49:15,879 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:49:15,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-1.c [2022-02-15 00:49:15,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b59188137/ef94f2ff31bd43f4a86c09f20f8834a4/FLAG3bd01ba89 [2022-02-15 00:49:16,431 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:49:16,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-1.c [2022-02-15 00:49:16,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b59188137/ef94f2ff31bd43f4a86c09f20f8834a4/FLAG3bd01ba89 [2022-02-15 00:49:16,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b59188137/ef94f2ff31bd43f4a86c09f20f8834a4 [2022-02-15 00:49:16,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:49:16,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:49:16,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:49:16,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:49:16,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:49:16,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:49:16" (1/1) ... [2022-02-15 00:49:16,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d1fb9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:16, skipping insertion in model container [2022-02-15 00:49:16,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:49:16" (1/1) ... [2022-02-15 00:49:16,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:49:16,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:49:17,288 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.13.i.cil-1.c[74354,74367] [2022-02-15 00:49:17,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:49:17,305 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:49:17,365 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.13.i.cil-1.c[74354,74367] [2022-02-15 00:49:17,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:49:17,384 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:49:17,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17 WrapperNode [2022-02-15 00:49:17,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:49:17,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:49:17,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:49:17,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:49:17,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:49:17,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:49:17,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:49:17,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:49:17,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (1/1) ... [2022-02-15 00:49:17,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:49:17,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:49:17,552 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) [2022-02-15 00:49:17,571 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 [2022-02-15 00:49:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:49:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:49:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:49:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:49:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:49:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:49:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:49:17,755 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:49:17,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:49:18,469 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:49:18,950 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:49:18,950 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:49:18,974 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:49:18,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:49:18,984 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:49:18,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:49:18 BoogieIcfgContainer [2022-02-15 00:49:18,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:49:18,986 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:49:18,986 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:49:18,987 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:49:18,989 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:49:18" (1/1) ... [2022-02-15 00:49:19,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:49:19 BasicIcfg [2022-02-15 00:49:19,074 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:49:19,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:49:19,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:49:19,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:49:19,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:49:16" (1/4) ... [2022-02-15 00:49:19,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a10aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:49:19, skipping insertion in model container [2022-02-15 00:49:19,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:49:17" (2/4) ... [2022-02-15 00:49:19,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a10aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:49:19, skipping insertion in model container [2022-02-15 00:49:19,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:49:18" (3/4) ... [2022-02-15 00:49:19,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a10aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:49:19, skipping insertion in model container [2022-02-15 00:49:19,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:49:19" (4/4) ... [2022-02-15 00:49:19,081 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.13.i.cil-1.cJordan [2022-02-15 00:49:19,084 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:49:19,085 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:49:19,144 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:49:19,160 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 [2022-02-15 00:49:19,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:49:19,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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) [2022-02-15 00:49:19,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-15 00:49:19,207 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:19,207 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] [2022-02-15 00:49:19,207 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:19,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:19,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-02-15 00:49:19,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:19,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779387038] [2022-02-15 00:49:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:19,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:19,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:19,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779387038] [2022-02-15 00:49:19,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779387038] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:19,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:19,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:19,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33325470] [2022-02-15 00:49:19,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:19,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:19,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:19,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:19,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:19,715 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:21,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:23,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:25,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:25,794 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-02-15 00:49:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:25,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-02-15 00:49:25,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:25,803 INFO L225 Difference]: With dead ends: 191 [2022-02-15 00:49:25,804 INFO L226 Difference]: Without dead ends: 170 [2022-02-15 00:49:25,805 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 [2022-02-15 00:49:25,807 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:25,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:49:25,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-15 00:49:25,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-02-15 00:49:25,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:25,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-02-15 00:49:25,847 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-02-15 00:49:25,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:25,848 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-02-15 00:49:25,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-02-15 00:49:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-15 00:49:25,852 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:25,852 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] [2022-02-15 00:49:25,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:49:25,852 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:25,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:25,855 INFO L85 PathProgramCache]: Analyzing trace with hash -31615949, now seen corresponding path program 1 times [2022-02-15 00:49:25,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:25,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737086301] [2022-02-15 00:49:25,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:25,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:26,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:26,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737086301] [2022-02-15 00:49:26,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737086301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:26,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:26,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:26,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134369223] [2022-02-15 00:49:26,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:26,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:26,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:26,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:26,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:26,018 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:28,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:30,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:31,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:31,061 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-02-15 00:49:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:31,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-02-15 00:49:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:31,064 INFO L225 Difference]: With dead ends: 272 [2022-02-15 00:49:31,064 INFO L226 Difference]: Without dead ends: 272 [2022-02-15 00:49:31,064 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 [2022-02-15 00:49:31,065 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 147 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:31,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 634 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 00:49:31,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-02-15 00:49:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 169. [2022-02-15 00:49:31,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-02-15 00:49:31,076 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-02-15 00:49:31,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:31,076 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-02-15 00:49:31,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:31,077 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-02-15 00:49:31,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:49:31,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:31,078 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] [2022-02-15 00:49:31,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:49:31,078 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:31,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:31,079 INFO L85 PathProgramCache]: Analyzing trace with hash 563568954, now seen corresponding path program 1 times [2022-02-15 00:49:31,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:31,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275039431] [2022-02-15 00:49:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:31,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:31,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275039431] [2022-02-15 00:49:31,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275039431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:31,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:31,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:31,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302870534] [2022-02-15 00:49:31,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:31,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:31,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:31,187 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:32,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:33,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:34,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:36,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:36,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:36,930 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-02-15 00:49:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:36,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:49:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:36,932 INFO L225 Difference]: With dead ends: 185 [2022-02-15 00:49:36,932 INFO L226 Difference]: Without dead ends: 185 [2022-02-15 00:49:36,932 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 [2022-02-15 00:49:36,933 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:36,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:49:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-15 00:49:36,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-02-15 00:49:36,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:36,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-02-15 00:49:36,940 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-02-15 00:49:36,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:36,940 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-02-15 00:49:36,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:36,940 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-02-15 00:49:36,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:49:36,941 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:36,942 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] [2022-02-15 00:49:36,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:49:36,942 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:36,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:36,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1102465370, now seen corresponding path program 1 times [2022-02-15 00:49:36,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:36,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948067185] [2022-02-15 00:49:36,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:36,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:37,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:37,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948067185] [2022-02-15 00:49:37,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948067185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:37,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:37,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:37,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661045248] [2022-02-15 00:49:37,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:37,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:37,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:37,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:37,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:37,070 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:38,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:40,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:41,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:43,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:44,311 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-02-15 00:49:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:44,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:49:44,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:44,312 INFO L225 Difference]: With dead ends: 185 [2022-02-15 00:49:44,313 INFO L226 Difference]: Without dead ends: 185 [2022-02-15 00:49:44,313 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 [2022-02-15 00:49:44,313 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:44,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-15 00:49:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-15 00:49:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-02-15 00:49:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-02-15 00:49:44,319 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-02-15 00:49:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:44,319 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-02-15 00:49:44,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:44,319 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-02-15 00:49:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:49:44,320 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:44,321 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] [2022-02-15 00:49:44,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:49:44,321 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:44,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash 345212314, now seen corresponding path program 1 times [2022-02-15 00:49:44,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:44,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151550258] [2022-02-15 00:49:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:44,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:44,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:44,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151550258] [2022-02-15 00:49:44,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151550258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:44,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:44,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:44,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782791056] [2022-02-15 00:49:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:44,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:44,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:44,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:44,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:44,458 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:45,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:47,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:49,733 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 [] [2022-02-15 00:49:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:50,119 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-02-15 00:49:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:50,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:49:50,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:50,121 INFO L225 Difference]: With dead ends: 183 [2022-02-15 00:49:50,121 INFO L226 Difference]: Without dead ends: 183 [2022-02-15 00:49:50,121 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 [2022-02-15 00:49:50,122 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:50,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:49:50,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-02-15 00:49:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-02-15 00:49:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-02-15 00:49:50,127 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-02-15 00:49:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:50,127 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-02-15 00:49:50,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:50,131 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-02-15 00:49:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:49:50,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:50,132 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] [2022-02-15 00:49:50,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:49:50,133 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:50,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash -3480390, now seen corresponding path program 1 times [2022-02-15 00:49:50,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:50,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214677865] [2022-02-15 00:49:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:50,235 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:50,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:50,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214677865] [2022-02-15 00:49:50,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214677865] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:50,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:50,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:50,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597096398] [2022-02-15 00:49:50,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:50,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:50,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:50,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:50,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:50,238 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:52,255 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 [] [2022-02-15 00:49:52,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:52,700 INFO L93 Difference]: Finished difference Result 287 states and 439 transitions. [2022-02-15 00:49:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:52,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:49:52,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:52,702 INFO L225 Difference]: With dead ends: 287 [2022-02-15 00:49:52,702 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 00:49:52,702 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 [2022-02-15 00:49:52,703 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:52,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:49:52,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 00:49:52,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-02-15 00:49:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 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) [2022-02-15 00:49:52,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-02-15 00:49:52,713 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-02-15 00:49:52,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:52,714 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-02-15 00:49:52,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:52,714 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-02-15 00:49:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-02-15 00:49:52,715 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:52,715 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] [2022-02-15 00:49:52,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:49:52,715 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:52,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1719924627, now seen corresponding path program 1 times [2022-02-15 00:49:52,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:52,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779500458] [2022-02-15 00:49:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:52,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:52,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779500458] [2022-02-15 00:49:52,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779500458] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:52,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:52,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:52,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246256916] [2022-02-15 00:49:52,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:52,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:52,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:52,845 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:54,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:56,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:58,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:59,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:59,221 INFO L93 Difference]: Finished difference Result 287 states and 436 transitions. [2022-02-15 00:49:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:59,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-02-15 00:49:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:59,225 INFO L225 Difference]: With dead ends: 287 [2022-02-15 00:49:59,226 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 00:49:59,226 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 [2022-02-15 00:49:59,226 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:59,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 00:49:59,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 00:49:59,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-02-15 00:49:59,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:59,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-02-15 00:49:59,232 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-02-15 00:49:59,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:59,232 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-02-15 00:49:59,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-02-15 00:49:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-15 00:49:59,233 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:59,234 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] [2022-02-15 00:49:59,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:49:59,234 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:59,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:59,234 INFO L85 PathProgramCache]: Analyzing trace with hash -9441922, now seen corresponding path program 1 times [2022-02-15 00:49:59,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:59,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146539816] [2022-02-15 00:49:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:59,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:59,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:59,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:59,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:59,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146539816] [2022-02-15 00:49:59,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146539816] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:59,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:59,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:59,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970774013] [2022-02-15 00:49:59,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:59,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:59,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:59,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:59,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:59,333 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:03,206 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 [] [2022-02-15 00:50:03,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:03,519 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-02-15 00:50:03,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:03,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-02-15 00:50:03,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:03,520 INFO L225 Difference]: With dead ends: 200 [2022-02-15 00:50:03,520 INFO L226 Difference]: Without dead ends: 200 [2022-02-15 00:50:03,520 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 [2022-02-15 00:50:03,521 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:03,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 00:50:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-15 00:50:03,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-02-15 00:50:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:03,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-02-15 00:50:03,525 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-02-15 00:50:03,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:03,525 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-02-15 00:50:03,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:03,525 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-02-15 00:50:03,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-15 00:50:03,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:03,526 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] [2022-02-15 00:50:03,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:50:03,526 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:03,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:03,526 INFO L85 PathProgramCache]: Analyzing trace with hash -553280842, now seen corresponding path program 1 times [2022-02-15 00:50:03,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:03,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413356860] [2022-02-15 00:50:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:03,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:03,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:50:03,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:03,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413356860] [2022-02-15 00:50:03,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413356860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:03,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:03,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:03,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631563298] [2022-02-15 00:50:03,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:03,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:03,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:03,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:03,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:03,613 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:06,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:08,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:09,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:09,458 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-02-15 00:50:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:09,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-02-15 00:50:09,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:09,459 INFO L225 Difference]: With dead ends: 190 [2022-02-15 00:50:09,459 INFO L226 Difference]: Without dead ends: 190 [2022-02-15 00:50:09,459 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 [2022-02-15 00:50:09,460 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:09,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-15 00:50:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-15 00:50:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-02-15 00:50:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-02-15 00:50:09,463 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-02-15 00:50:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:09,464 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-02-15 00:50:09,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:09,464 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-02-15 00:50:09,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-15 00:50:09,464 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:09,464 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] [2022-02-15 00:50:09,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:50:09,465 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:09,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:09,465 INFO L85 PathProgramCache]: Analyzing trace with hash -186558363, now seen corresponding path program 1 times [2022-02-15 00:50:09,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:09,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793642229] [2022-02-15 00:50:09,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:09,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:50:09,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:09,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793642229] [2022-02-15 00:50:09,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793642229] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:09,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:09,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:09,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390885742] [2022-02-15 00:50:09,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:09,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:09,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:09,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:09,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:09,599 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:11,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:13,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:14,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:15,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:15,757 INFO L93 Difference]: Finished difference Result 305 states and 461 transitions. [2022-02-15 00:50:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:15,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-02-15 00:50:15,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:15,759 INFO L225 Difference]: With dead ends: 305 [2022-02-15 00:50:15,759 INFO L226 Difference]: Without dead ends: 305 [2022-02-15 00:50:15,759 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 [2022-02-15 00:50:15,760 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:15,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 344 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:50:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-15 00:50:15,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 215. [2022-02-15 00:50:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-02-15 00:50:15,764 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-02-15 00:50:15,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:15,765 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-02-15 00:50:15,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-02-15 00:50:15,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-15 00:50:15,765 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:15,765 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] [2022-02-15 00:50:15,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:50:15,766 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:15,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:15,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1871719059, now seen corresponding path program 1 times [2022-02-15 00:50:15,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:15,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83172950] [2022-02-15 00:50:15,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:15,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:50:15,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:15,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83172950] [2022-02-15 00:50:15,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83172950] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:15,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:15,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:15,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241367922] [2022-02-15 00:50:15,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:15,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:15,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:15,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:15,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:15,874 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:17,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:19,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:20,292 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-02-15 00:50:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:20,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-02-15 00:50:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:20,293 INFO L225 Difference]: With dead ends: 257 [2022-02-15 00:50:20,293 INFO L226 Difference]: Without dead ends: 257 [2022-02-15 00:50:20,294 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 [2022-02-15 00:50:20,294 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:20,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-15 00:50:20,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-15 00:50:20,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-02-15 00:50:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-02-15 00:50:20,298 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-02-15 00:50:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:20,298 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-02-15 00:50:20,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:20,299 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-02-15 00:50:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 00:50:20,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:20,299 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:20,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:50:20,299 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:20,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:20,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1940068921, now seen corresponding path program 1 times [2022-02-15 00:50:20,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:20,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170180190] [2022-02-15 00:50:20,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:20,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:20,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:50:20,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:20,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170180190] [2022-02-15 00:50:20,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170180190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:20,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:20,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:20,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118191376] [2022-02-15 00:50:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:20,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:20,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:20,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:20,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:20,433 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:22,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:23,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:26,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:26,452 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-02-15 00:50:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:26,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-02-15 00:50:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:26,454 INFO L225 Difference]: With dead ends: 250 [2022-02-15 00:50:26,454 INFO L226 Difference]: Without dead ends: 250 [2022-02-15 00:50:26,454 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 [2022-02-15 00:50:26,455 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:26,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:50:26,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-15 00:50:26,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-02-15 00:50:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-02-15 00:50:26,460 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-02-15 00:50:26,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:26,460 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-02-15 00:50:26,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:26,460 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-02-15 00:50:26,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 00:50:26,461 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:26,461 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:26,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:50:26,461 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:26,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:26,462 INFO L85 PathProgramCache]: Analyzing trace with hash -534019623, now seen corresponding path program 1 times [2022-02-15 00:50:26,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:26,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23968564] [2022-02-15 00:50:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:26,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:50:26,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:26,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23968564] [2022-02-15 00:50:26,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23968564] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:26,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:26,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:26,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088013555] [2022-02-15 00:50:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:26,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:26,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:26,548 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:29,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:31,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:32,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:32,239 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-02-15 00:50:32,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:32,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-02-15 00:50:32,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:32,240 INFO L225 Difference]: With dead ends: 255 [2022-02-15 00:50:32,240 INFO L226 Difference]: Without dead ends: 255 [2022-02-15 00:50:32,240 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 [2022-02-15 00:50:32,241 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:32,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 389 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:50:32,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-15 00:50:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-02-15 00:50:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-02-15 00:50:32,245 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-02-15 00:50:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:32,245 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-02-15 00:50:32,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-02-15 00:50:32,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-15 00:50:32,245 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:32,246 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:32,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:50:32,246 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:32,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:32,246 INFO L85 PathProgramCache]: Analyzing trace with hash -801809009, now seen corresponding path program 1 times [2022-02-15 00:50:32,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:32,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012274748] [2022-02-15 00:50:32,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:32,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-15 00:50:32,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:32,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012274748] [2022-02-15 00:50:32,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012274748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:32,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:32,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:50:32,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514030672] [2022-02-15 00:50:32,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:32,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:50:32,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:32,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:50:32,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:32,358 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:34,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:36,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:37,256 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-02-15 00:50:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 00:50:37,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-15 00:50:37,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:37,257 INFO L225 Difference]: With dead ends: 246 [2022-02-15 00:50:37,257 INFO L226 Difference]: Without dead ends: 246 [2022-02-15 00:50:37,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:50:37,258 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:37,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:50:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-02-15 00:50:37,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-02-15 00:50:37,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 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) [2022-02-15 00:50:37,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-02-15 00:50:37,261 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-02-15 00:50:37,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:37,262 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-02-15 00:50:37,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:37,262 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-02-15 00:50:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-15 00:50:37,262 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:37,262 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] [2022-02-15 00:50:37,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:50:37,262 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:37,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1681571247, now seen corresponding path program 1 times [2022-02-15 00:50:37,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:37,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511816614] [2022-02-15 00:50:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:50:37,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:37,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511816614] [2022-02-15 00:50:37,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511816614] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:37,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:37,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:37,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494114229] [2022-02-15 00:50:37,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:37,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:37,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:37,346 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:40,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:43,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:43,397 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-02-15 00:50:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:43,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-15 00:50:43,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:43,398 INFO L225 Difference]: With dead ends: 273 [2022-02-15 00:50:43,398 INFO L226 Difference]: Without dead ends: 273 [2022-02-15 00:50:43,398 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 [2022-02-15 00:50:43,399 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:43,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 389 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:50:43,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-02-15 00:50:43,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-02-15 00:50:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-02-15 00:50:43,403 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-02-15 00:50:43,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:43,403 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-02-15 00:50:43,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-02-15 00:50:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-15 00:50:43,404 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:43,404 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] [2022-02-15 00:50:43,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:50:43,404 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:43,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1399153773, now seen corresponding path program 1 times [2022-02-15 00:50:43,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:43,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448779582] [2022-02-15 00:50:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:43,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:43,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:50:43,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:43,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448779582] [2022-02-15 00:50:43,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448779582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:43,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:43,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:43,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009517850] [2022-02-15 00:50:43,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:43,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:43,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:43,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:43,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:43,528 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:45,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:47,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:49,268 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 [] [2022-02-15 00:50:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:49,731 INFO L93 Difference]: Finished difference Result 355 states and 531 transitions. [2022-02-15 00:50:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:49,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-02-15 00:50:49,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:49,733 INFO L225 Difference]: With dead ends: 355 [2022-02-15 00:50:49,733 INFO L226 Difference]: Without dead ends: 355 [2022-02-15 00:50:49,733 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 [2022-02-15 00:50:49,734 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:49,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:50:49,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-02-15 00:50:49,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-02-15 00:50:49,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-02-15 00:50:49,738 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-02-15 00:50:49,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:49,738 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-02-15 00:50:49,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-02-15 00:50:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 00:50:49,739 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:49,739 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] [2022-02-15 00:50:49,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:50:49,739 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:49,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:49,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1192836383, now seen corresponding path program 1 times [2022-02-15 00:50:49,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:49,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088001898] [2022-02-15 00:50:49,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:49,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:49,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:49,830 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:50:49,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:49,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088001898] [2022-02-15 00:50:49,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088001898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:49,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:49,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:49,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209821052] [2022-02-15 00:50:49,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:49,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:49,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:49,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:49,831 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:51,839 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 [] [2022-02-15 00:50:52,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:52,234 INFO L93 Difference]: Finished difference Result 355 states and 527 transitions. [2022-02-15 00:50:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:52,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-15 00:50:52,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:52,236 INFO L225 Difference]: With dead ends: 355 [2022-02-15 00:50:52,236 INFO L226 Difference]: Without dead ends: 355 [2022-02-15 00:50:52,236 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 [2022-02-15 00:50:52,236 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 146 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:52,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:50:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-02-15 00:50:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-02-15 00:50:52,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-02-15 00:50:52,241 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-02-15 00:50:52,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:52,241 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-02-15 00:50:52,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:52,241 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-02-15 00:50:52,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-15 00:50:52,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:52,241 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] [2022-02-15 00:50:52,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:50:52,242 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:52,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1089053230, now seen corresponding path program 1 times [2022-02-15 00:50:52,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:52,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472123183] [2022-02-15 00:50:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:52,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:52,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:52,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472123183] [2022-02-15 00:50:52,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472123183] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:52,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:52,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:52,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897256533] [2022-02-15 00:50:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:52,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:52,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:52,382 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:53,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:55,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:57,614 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 [] [2022-02-15 00:50:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:58,053 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2022-02-15 00:50:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:58,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-02-15 00:50:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:58,054 INFO L225 Difference]: With dead ends: 353 [2022-02-15 00:50:58,054 INFO L226 Difference]: Without dead ends: 353 [2022-02-15 00:50:58,054 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 [2022-02-15 00:50:58,055 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 90 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:58,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:50:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-02-15 00:50:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 277. [2022-02-15 00:50:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-02-15 00:50:58,059 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-02-15 00:50:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:58,059 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-02-15 00:50:58,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-02-15 00:50:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-15 00:50:58,060 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:58,060 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] [2022-02-15 00:50:58,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:50:58,060 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:58,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:58,061 INFO L85 PathProgramCache]: Analyzing trace with hash -63561231, now seen corresponding path program 1 times [2022-02-15 00:50:58,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:58,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120568611] [2022-02-15 00:50:58,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:58,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:58,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:58,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:58,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120568611] [2022-02-15 00:50:58,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120568611] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:58,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:58,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:58,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506951013] [2022-02-15 00:50:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:58,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:58,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:58,161 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:59,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:00,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:01,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:01,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:01,996 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-02-15 00:51:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:01,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-02-15 00:51:01,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:01,997 INFO L225 Difference]: With dead ends: 335 [2022-02-15 00:51:01,997 INFO L226 Difference]: Without dead ends: 335 [2022-02-15 00:51:01,997 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 [2022-02-15 00:51:01,998 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:01,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:51:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-02-15 00:51:02,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-02-15 00:51:02,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:02,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-02-15 00:51:02,002 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-02-15 00:51:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:02,002 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-02-15 00:51:02,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-02-15 00:51:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 00:51:02,003 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:02,003 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:02,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:51:02,003 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2130514276, now seen corresponding path program 1 times [2022-02-15 00:51:02,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:02,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744434864] [2022-02-15 00:51:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:51:02,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:02,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744434864] [2022-02-15 00:51:02,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744434864] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:02,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:02,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:02,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426057500] [2022-02-15 00:51:02,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:02,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:02,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:02,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:02,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:02,133 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:03,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:05,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:07,867 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 [] [2022-02-15 00:51:08,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:08,760 INFO L93 Difference]: Finished difference Result 400 states and 594 transitions. [2022-02-15 00:51:08,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:08,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:51:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:08,762 INFO L225 Difference]: With dead ends: 400 [2022-02-15 00:51:08,762 INFO L226 Difference]: Without dead ends: 400 [2022-02-15 00:51:08,762 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 [2022-02-15 00:51:08,762 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:08,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 00:51:08,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-15 00:51:08,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 301. [2022-02-15 00:51:08,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-02-15 00:51:08,767 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-02-15 00:51:08,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:08,767 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-02-15 00:51:08,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-02-15 00:51:08,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 00:51:08,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:08,768 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] [2022-02-15 00:51:08,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:51:08,768 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:08,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:08,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1861806618, now seen corresponding path program 1 times [2022-02-15 00:51:08,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:08,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561299788] [2022-02-15 00:51:08,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:08,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:08,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:51:08,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:08,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561299788] [2022-02-15 00:51:08,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561299788] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:08,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:08,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:08,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482264521] [2022-02-15 00:51:08,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:08,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:08,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:08,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:08,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:08,857 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:09,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:11,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:14,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:14,734 INFO L93 Difference]: Finished difference Result 429 states and 638 transitions. [2022-02-15 00:51:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:14,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:51:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:14,735 INFO L225 Difference]: With dead ends: 429 [2022-02-15 00:51:14,735 INFO L226 Difference]: Without dead ends: 429 [2022-02-15 00:51:14,736 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 [2022-02-15 00:51:14,736 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 120 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:14,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:51:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-02-15 00:51:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 351. [2022-02-15 00:51:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:14,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-02-15 00:51:14,741 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 87 [2022-02-15 00:51:14,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:14,741 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-02-15 00:51:14,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:14,742 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-02-15 00:51:14,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-15 00:51:14,742 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:14,742 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] [2022-02-15 00:51:14,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:51:14,742 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:14,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:14,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1882382522, now seen corresponding path program 1 times [2022-02-15 00:51:14,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:14,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100609411] [2022-02-15 00:51:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:14,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:51:14,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:14,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100609411] [2022-02-15 00:51:14,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100609411] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:14,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:14,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:14,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464809649] [2022-02-15 00:51:14,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:14,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:14,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:14,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:14,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:14,833 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:16,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:18,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:21,676 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 [] [2022-02-15 00:51:22,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:22,086 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-02-15 00:51:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:22,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:51:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:22,088 INFO L225 Difference]: With dead ends: 411 [2022-02-15 00:51:22,088 INFO L226 Difference]: Without dead ends: 411 [2022-02-15 00:51:22,088 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 [2022-02-15 00:51:22,088 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 71 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:22,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 483 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-15 00:51:22,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-02-15 00:51:22,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 362. [2022-02-15 00:51:22,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-02-15 00:51:22,093 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 88 [2022-02-15 00:51:22,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:22,093 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-02-15 00:51:22,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:22,093 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-02-15 00:51:22,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-15 00:51:22,094 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:22,103 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:22,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:51:22,103 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:22,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1616616152, now seen corresponding path program 1 times [2022-02-15 00:51:22,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:22,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898783128] [2022-02-15 00:51:22,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:22,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:51:22,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:22,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898783128] [2022-02-15 00:51:22,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898783128] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:22,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:22,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:22,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319217631] [2022-02-15 00:51:22,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:22,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:22,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:22,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:22,229 INFO L87 Difference]: Start difference. First operand 362 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:25,396 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 [] [2022-02-15 00:51:27,424 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 [] [2022-02-15 00:51:27,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:27,873 INFO L93 Difference]: Finished difference Result 451 states and 675 transitions. [2022-02-15 00:51:27,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:27,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-02-15 00:51:27,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:27,875 INFO L225 Difference]: With dead ends: 451 [2022-02-15 00:51:27,875 INFO L226 Difference]: Without dead ends: 451 [2022-02-15 00:51:27,875 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 [2022-02-15 00:51:27,875 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:27,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:51:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-02-15 00:51:27,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 362. [2022-02-15 00:51:27,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 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) [2022-02-15 00:51:27,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-02-15 00:51:27,880 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-02-15 00:51:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:27,881 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-02-15 00:51:27,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-02-15 00:51:27,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-15 00:51:27,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:27,882 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:27,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:51:27,882 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:27,882 INFO L85 PathProgramCache]: Analyzing trace with hash -368196464, now seen corresponding path program 1 times [2022-02-15 00:51:27,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:27,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198595449] [2022-02-15 00:51:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:27,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:27,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:51:27,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:27,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198595449] [2022-02-15 00:51:27,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198595449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:27,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:27,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:27,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983917273] [2022-02-15 00:51:27,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:27,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:27,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:27,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:27,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:27,976 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:29,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:30,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:32,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:34,527 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 [] [2022-02-15 00:51:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:34,939 INFO L93 Difference]: Finished difference Result 441 states and 656 transitions. [2022-02-15 00:51:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:34,939 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 97 [2022-02-15 00:51:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:34,940 INFO L225 Difference]: With dead ends: 441 [2022-02-15 00:51:34,940 INFO L226 Difference]: Without dead ends: 441 [2022-02-15 00:51:34,940 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 [2022-02-15 00:51:34,941 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 139 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:34,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-02-15 00:51:34,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-02-15 00:51:34,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 362. [2022-02-15 00:51:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:34,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-02-15 00:51:34,946 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-02-15 00:51:34,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:34,946 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-02-15 00:51:34,946 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) [2022-02-15 00:51:34,946 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-02-15 00:51:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:51:34,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:34,947 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:34,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:51:34,947 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:34,948 INFO L85 PathProgramCache]: Analyzing trace with hash -102121424, now seen corresponding path program 1 times [2022-02-15 00:51:34,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:34,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323832300] [2022-02-15 00:51:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:34,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:35,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:51:35,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:35,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323832300] [2022-02-15 00:51:35,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323832300] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:35,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:35,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:35,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085364717] [2022-02-15 00:51:35,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:35,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:35,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:35,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:35,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:35,066 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:36,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:39,015 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 [] [2022-02-15 00:51:41,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:41,242 INFO L93 Difference]: Finished difference Result 399 states and 586 transitions. [2022-02-15 00:51:41,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:41,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:51:41,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:41,244 INFO L225 Difference]: With dead ends: 399 [2022-02-15 00:51:41,244 INFO L226 Difference]: Without dead ends: 399 [2022-02-15 00:51:41,244 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 [2022-02-15 00:51:41,244 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 77 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:41,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:51:41,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-02-15 00:51:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 362. [2022-02-15 00:51:41,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-02-15 00:51:41,248 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-02-15 00:51:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:41,249 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-02-15 00:51:41,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-02-15 00:51:41,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:51:41,250 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:41,250 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:41,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:51:41,250 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash -81784049, now seen corresponding path program 1 times [2022-02-15 00:51:41,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:41,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628785546] [2022-02-15 00:51:41,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:41,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-15 00:51:41,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:41,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628785546] [2022-02-15 00:51:41,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628785546] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:41,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:41,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:41,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644433859] [2022-02-15 00:51:41,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:41,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:41,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:41,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:41,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:41,352 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:43,829 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 [] [2022-02-15 00:51:45,851 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 [] [2022-02-15 00:51:46,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:46,132 INFO L93 Difference]: Finished difference Result 693 states and 1026 transitions. [2022-02-15 00:51:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:46,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:51:46,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:46,134 INFO L225 Difference]: With dead ends: 693 [2022-02-15 00:51:46,134 INFO L226 Difference]: Without dead ends: 693 [2022-02-15 00:51:46,134 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 [2022-02-15 00:51:46,135 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:46,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 432 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 279 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:51:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-02-15 00:51:46,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2022-02-15 00:51:46,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 688 states have (on average 1.4854651162790697) internal successors, (1022), 688 states have internal predecessors, (1022), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:46,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1026 transitions. [2022-02-15 00:51:46,151 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1026 transitions. Word has length 104 [2022-02-15 00:51:46,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:46,151 INFO L470 AbstractCegarLoop]: Abstraction has 693 states and 1026 transitions. [2022-02-15 00:51:46,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:46,151 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1026 transitions. [2022-02-15 00:51:46,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:51:46,152 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:46,152 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:46,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:51:46,152 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:46,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2012403154, now seen corresponding path program 1 times [2022-02-15 00:51:46,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:46,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423835928] [2022-02-15 00:51:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:46,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-15 00:51:46,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:46,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423835928] [2022-02-15 00:51:46,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423835928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:46,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:46,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:46,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806387887] [2022-02-15 00:51:46,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:46,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:46,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:46,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:46,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:46,227 INFO L87 Difference]: Start difference. First operand 693 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:48,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:48,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:48,908 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-02-15 00:51:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:48,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:51:48,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:48,911 INFO L225 Difference]: With dead ends: 720 [2022-02-15 00:51:48,911 INFO L226 Difference]: Without dead ends: 720 [2022-02-15 00:51:48,911 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 [2022-02-15 00:51:48,911 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:48,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-15 00:51:48,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-02-15 00:51:48,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-02-15 00:51:48,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:48,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-02-15 00:51:48,918 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-02-15 00:51:48,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:48,919 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-02-15 00:51:48,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-02-15 00:51:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:51:48,920 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:48,920 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:48,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:51:48,920 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:48,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1592886323, now seen corresponding path program 1 times [2022-02-15 00:51:48,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:48,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949925961] [2022-02-15 00:51:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:48,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-02-15 00:51:48,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:48,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949925961] [2022-02-15 00:51:48,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949925961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:48,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:48,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:48,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130953954] [2022-02-15 00:51:48,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:48,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:48,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:48,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:48,992 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 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) [2022-02-15 00:51:51,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:52,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:52,415 INFO L93 Difference]: Finished difference Result 722 states and 1063 transitions. [2022-02-15 00:51:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:52,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 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 104 [2022-02-15 00:51:52,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:52,417 INFO L225 Difference]: With dead ends: 722 [2022-02-15 00:51:52,417 INFO L226 Difference]: Without dead ends: 722 [2022-02-15 00:51:52,417 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 [2022-02-15 00:51:52,418 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:52,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-15 00:51:52,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-02-15 00:51:52,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-02-15 00:51:52,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 717 states have (on average 1.4769874476987448) internal successors, (1059), 717 states have internal predecessors, (1059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:52,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1063 transitions. [2022-02-15 00:51:52,445 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1063 transitions. Word has length 104 [2022-02-15 00:51:52,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:52,445 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 1063 transitions. [2022-02-15 00:51:52,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 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) [2022-02-15 00:51:52,445 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1063 transitions. [2022-02-15 00:51:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-15 00:51:52,446 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:52,447 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:52,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:51:52,447 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:52,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash -276398424, now seen corresponding path program 1 times [2022-02-15 00:51:52,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:52,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677951302] [2022-02-15 00:51:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:52,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:52,559 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:51:52,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:52,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677951302] [2022-02-15 00:51:52,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677951302] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:52,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:52,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:52,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233190548] [2022-02-15 00:51:52,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:52,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:52,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:52,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:52,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:52,561 INFO L87 Difference]: Start difference. First operand 722 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:54,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:56,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:58,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:58,698 INFO L93 Difference]: Finished difference Result 1058 states and 1566 transitions. [2022-02-15 00:51:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:58,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-02-15 00:51:58,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:58,701 INFO L225 Difference]: With dead ends: 1058 [2022-02-15 00:51:58,701 INFO L226 Difference]: Without dead ends: 1058 [2022-02-15 00:51:58,702 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 [2022-02-15 00:51:58,702 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:58,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 244 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:51:58,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-02-15 00:51:58,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2022-02-15 00:51:58,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4852521408182684) internal successors, (1561), 1051 states have internal predecessors, (1561), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:58,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1565 transitions. [2022-02-15 00:51:58,713 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1565 transitions. Word has length 106 [2022-02-15 00:51:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:58,713 INFO L470 AbstractCegarLoop]: Abstraction has 1056 states and 1565 transitions. [2022-02-15 00:51:58,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1565 transitions. [2022-02-15 00:51:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-15 00:51:58,714 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:58,714 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:58,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:51:58,714 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:58,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:58,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1937733360, now seen corresponding path program 1 times [2022-02-15 00:51:58,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:58,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282963351] [2022-02-15 00:51:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:58,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:51:58,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:58,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282963351] [2022-02-15 00:51:58,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282963351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:58,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:58,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:58,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926631661] [2022-02-15 00:51:58,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:58,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:58,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:58,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:58,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:58,799 INFO L87 Difference]: Start difference. First operand 1056 states and 1565 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:00,806 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 [] [2022-02-15 00:52:01,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:01,249 INFO L93 Difference]: Finished difference Result 1392 states and 2054 transitions. [2022-02-15 00:52:01,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:52:01,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-15 00:52:01,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:01,252 INFO L225 Difference]: With dead ends: 1392 [2022-02-15 00:52:01,252 INFO L226 Difference]: Without dead ends: 1392 [2022-02-15 00:52:01,252 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 [2022-02-15 00:52:01,253 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:01,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 576 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:52:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-02-15 00:52:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2022-02-15 00:52:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1385 states have (on average 1.47942238267148) internal successors, (2049), 1385 states have internal predecessors, (2049), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2053 transitions. [2022-02-15 00:52:01,266 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2053 transitions. Word has length 112 [2022-02-15 00:52:01,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:01,267 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 2053 transitions. [2022-02-15 00:52:01,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2053 transitions. [2022-02-15 00:52:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-02-15 00:52:01,269 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:01,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:01,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:52:01,269 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:01,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:01,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2105249294, now seen corresponding path program 1 times [2022-02-15 00:52:01,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:01,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77687891] [2022-02-15 00:52:01,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:01,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:52:01,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:01,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77687891] [2022-02-15 00:52:01,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77687891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:01,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:01,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:01,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856950823] [2022-02-15 00:52:01,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:01,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:01,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:01,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:01,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:01,360 INFO L87 Difference]: Start difference. First operand 1390 states and 2053 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:03,375 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 [] [2022-02-15 00:52:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:03,789 INFO L93 Difference]: Finished difference Result 1700 states and 2501 transitions. [2022-02-15 00:52:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:03,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-02-15 00:52:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:03,793 INFO L225 Difference]: With dead ends: 1700 [2022-02-15 00:52:03,794 INFO L226 Difference]: Without dead ends: 1700 [2022-02-15 00:52:03,794 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 [2022-02-15 00:52:03,794 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 109 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:03,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 380 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:52:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-02-15 00:52:03,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1394. [2022-02-15 00:52:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1389 states have (on average 1.4838012958963283) internal successors, (2061), 1389 states have internal predecessors, (2061), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:03,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2065 transitions. [2022-02-15 00:52:03,813 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2065 transitions. Word has length 129 [2022-02-15 00:52:03,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:03,813 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 2065 transitions. [2022-02-15 00:52:03,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2065 transitions. [2022-02-15 00:52:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 00:52:03,815 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:03,815 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:03,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:52:03,815 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:03,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-02-15 00:52:03,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:03,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125356146] [2022-02-15 00:52:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:03,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-15 00:52:03,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:03,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125356146] [2022-02-15 00:52:03,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125356146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:03,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:03,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:52:03,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783354950] [2022-02-15 00:52:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:03,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:52:03,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:03,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:52:03,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:52:03,928 INFO L87 Difference]: Start difference. First operand 1394 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:05,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:07,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:09,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:09,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:09,679 INFO L93 Difference]: Finished difference Result 1731 states and 2565 transitions. [2022-02-15 00:52:09,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:52:09,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-02-15 00:52:09,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:09,684 INFO L225 Difference]: With dead ends: 1731 [2022-02-15 00:52:09,684 INFO L226 Difference]: Without dead ends: 1731 [2022-02-15 00:52:09,684 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 [2022-02-15 00:52:09,684 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:09,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:52:09,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-02-15 00:52:09,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1729. [2022-02-15 00:52:09,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1724 states have (on average 1.4849187935034802) internal successors, (2560), 1724 states have internal predecessors, (2560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:09,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2564 transitions. [2022-02-15 00:52:09,702 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2564 transitions. Word has length 134 [2022-02-15 00:52:09,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:09,703 INFO L470 AbstractCegarLoop]: Abstraction has 1729 states and 2564 transitions. [2022-02-15 00:52:09,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:09,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2564 transitions. [2022-02-15 00:52:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-15 00:52:09,705 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:09,705 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 00:52:09,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:52:09,705 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:09,706 INFO L85 PathProgramCache]: Analyzing trace with hash -2111385345, now seen corresponding path program 1 times [2022-02-15 00:52:09,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:09,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106798781] [2022-02-15 00:52:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:09,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:52:09,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:09,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106798781] [2022-02-15 00:52:09,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106798781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:09,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:09,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:09,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214061956] [2022-02-15 00:52:09,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:09,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:09,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:09,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:09,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:09,845 INFO L87 Difference]: Start difference. First operand 1729 states and 2564 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:12,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:13,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:13,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:13,735 INFO L93 Difference]: Finished difference Result 2436 states and 3618 transitions. [2022-02-15 00:52:13,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:13,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-15 00:52:13,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:13,741 INFO L225 Difference]: With dead ends: 2436 [2022-02-15 00:52:13,741 INFO L226 Difference]: Without dead ends: 2436 [2022-02-15 00:52:13,741 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 [2022-02-15 00:52:13,742 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 115 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:13,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 378 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 00:52:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-02-15 00:52:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2049. [2022-02-15 00:52:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 2044 states have (on average 1.4921722113502935) internal successors, (3050), 2044 states have internal predecessors, (3050), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:13,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3054 transitions. [2022-02-15 00:52:13,766 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3054 transitions. Word has length 157 [2022-02-15 00:52:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:13,766 INFO L470 AbstractCegarLoop]: Abstraction has 2049 states and 3054 transitions. [2022-02-15 00:52:13,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:13,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3054 transitions. [2022-02-15 00:52:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-15 00:52:13,769 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:13,769 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:13,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:52:13,769 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2033495211, now seen corresponding path program 1 times [2022-02-15 00:52:13,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:13,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845704755] [2022-02-15 00:52:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:13,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:52:13,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:13,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845704755] [2022-02-15 00:52:13,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845704755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:13,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:13,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:13,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967885190] [2022-02-15 00:52:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:13,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:13,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:13,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:13,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:13,860 INFO L87 Difference]: Start difference. First operand 2049 states and 3054 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) [2022-02-15 00:52:17,038 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 [] [2022-02-15 00:52:18,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:18,295 INFO L93 Difference]: Finished difference Result 2380 states and 3529 transitions. [2022-02-15 00:52:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:18,295 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 163 [2022-02-15 00:52:18,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:18,302 INFO L225 Difference]: With dead ends: 2380 [2022-02-15 00:52:18,302 INFO L226 Difference]: Without dead ends: 2380 [2022-02-15 00:52:18,302 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 [2022-02-15 00:52:18,303 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 72 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:18,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 648 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 582 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-15 00:52:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-02-15 00:52:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2197. [2022-02-15 00:52:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4972627737226278) internal successors, (3282), 2192 states have internal predecessors, (3282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3286 transitions. [2022-02-15 00:52:18,323 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3286 transitions. Word has length 163 [2022-02-15 00:52:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:18,324 INFO L470 AbstractCegarLoop]: Abstraction has 2197 states and 3286 transitions. [2022-02-15 00:52:18,324 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) [2022-02-15 00:52:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3286 transitions. [2022-02-15 00:52:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 00:52:18,326 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:18,327 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:18,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:52:18,327 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:18,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash 809864280, now seen corresponding path program 1 times [2022-02-15 00:52:18,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:18,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275380797] [2022-02-15 00:52:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:18,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:52:18,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:18,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275380797] [2022-02-15 00:52:18,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275380797] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:18,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:18,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:18,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10403574] [2022-02-15 00:52:18,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:18,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:18,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:18,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:18,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:18,425 INFO L87 Difference]: Start difference. First operand 2197 states and 3286 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) [2022-02-15 00:52:19,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:21,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:23,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:24,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:25,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:25,012 INFO L93 Difference]: Finished difference Result 2524 states and 3720 transitions. [2022-02-15 00:52:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:25,012 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 164 [2022-02-15 00:52:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:25,018 INFO L225 Difference]: With dead ends: 2524 [2022-02-15 00:52:25,018 INFO L226 Difference]: Without dead ends: 2524 [2022-02-15 00:52:25,018 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 [2022-02-15 00:52:25,019 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:25,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 00:52:25,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-02-15 00:52:25,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2197. [2022-02-15 00:52:25,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4927007299270072) internal successors, (3272), 2192 states have internal predecessors, (3272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3276 transitions. [2022-02-15 00:52:25,072 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3276 transitions. Word has length 164 [2022-02-15 00:52:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:25,073 INFO L470 AbstractCegarLoop]: Abstraction has 2197 states and 3276 transitions. [2022-02-15 00:52:25,073 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) [2022-02-15 00:52:25,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3276 transitions. [2022-02-15 00:52:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-15 00:52:25,076 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:25,077 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:25,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:52:25,077 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:25,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:25,078 INFO L85 PathProgramCache]: Analyzing trace with hash 243838419, now seen corresponding path program 1 times [2022-02-15 00:52:25,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:25,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726679583] [2022-02-15 00:52:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:25,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:25,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-15 00:52:25,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:25,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726679583] [2022-02-15 00:52:25,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726679583] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:25,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:25,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:52:25,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177985187] [2022-02-15 00:52:25,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:25,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:52:25,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:25,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:52:25,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:52:25,179 INFO L87 Difference]: Start difference. First operand 2197 states and 3276 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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) [2022-02-15 00:52:27,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:28,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:29,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:29,170 INFO L93 Difference]: Finished difference Result 2599 states and 3876 transitions. [2022-02-15 00:52:29,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:52:29,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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 171 [2022-02-15 00:52:29,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:29,177 INFO L225 Difference]: With dead ends: 2599 [2022-02-15 00:52:29,177 INFO L226 Difference]: Without dead ends: 2599 [2022-02-15 00:52:29,177 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 [2022-02-15 00:52:29,177 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:29,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 580 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 427 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:52:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2022-02-15 00:52:29,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2599. [2022-02-15 00:52:29,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2594 states have (on average 1.4926754047802622) internal successors, (3872), 2594 states have internal predecessors, (3872), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3876 transitions. [2022-02-15 00:52:29,229 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3876 transitions. Word has length 171 [2022-02-15 00:52:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:29,229 INFO L470 AbstractCegarLoop]: Abstraction has 2599 states and 3876 transitions. [2022-02-15 00:52:29,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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) [2022-02-15 00:52:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3876 transitions. [2022-02-15 00:52:29,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-15 00:52:29,233 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:29,234 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:29,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:52:29,234 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:29,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1691821868, now seen corresponding path program 1 times [2022-02-15 00:52:29,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:29,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090256802] [2022-02-15 00:52:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:29,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:29,344 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:52:29,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:29,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090256802] [2022-02-15 00:52:29,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090256802] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:29,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:29,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:52:29,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147502949] [2022-02-15 00:52:29,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:29,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:52:29,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:29,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:52:29,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:52:29,347 INFO L87 Difference]: Start difference. First operand 2599 states and 3876 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:31,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:31,501 INFO L93 Difference]: Finished difference Result 2999 states and 4472 transitions. [2022-02-15 00:52:31,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:52:31,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-02-15 00:52:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:31,507 INFO L225 Difference]: With dead ends: 2999 [2022-02-15 00:52:31,507 INFO L226 Difference]: Without dead ends: 2999 [2022-02-15 00:52:31,507 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 [2022-02-15 00:52:31,508 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:31,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 574 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-15 00:52:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2022-02-15 00:52:31,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2999. [2022-02-15 00:52:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2994 states have (on average 1.492317969271877) internal successors, (4468), 2994 states have internal predecessors, (4468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 4472 transitions. [2022-02-15 00:52:31,540 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 4472 transitions. Word has length 171 [2022-02-15 00:52:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:31,540 INFO L470 AbstractCegarLoop]: Abstraction has 2999 states and 4472 transitions. [2022-02-15 00:52:31,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 4472 transitions. [2022-02-15 00:52:31,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-02-15 00:52:31,543 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:31,543 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:31,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:52:31,543 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:31,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1491668842, now seen corresponding path program 1 times [2022-02-15 00:52:31,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:31,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806419889] [2022-02-15 00:52:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:31,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-15 00:52:31,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:31,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806419889] [2022-02-15 00:52:31,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806419889] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:31,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:31,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:31,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750791085] [2022-02-15 00:52:31,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:31,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:31,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:31,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:31,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:31,668 INFO L87 Difference]: Start difference. First operand 2999 states and 4472 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:32,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:35,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:37,238 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 [] [2022-02-15 00:52:37,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:37,638 INFO L93 Difference]: Finished difference Result 3707 states and 5476 transitions. [2022-02-15 00:52:37,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:37,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-02-15 00:52:37,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:37,643 INFO L225 Difference]: With dead ends: 3707 [2022-02-15 00:52:37,644 INFO L226 Difference]: Without dead ends: 3707 [2022-02-15 00:52:37,644 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 [2022-02-15 00:52:37,644 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 106 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:37,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 368 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:52:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-02-15 00:52:37,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3036. [2022-02-15 00:52:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3031 states have (on average 1.4909270867700428) internal successors, (4519), 3031 states have internal predecessors, (4519), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4523 transitions. [2022-02-15 00:52:37,667 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4523 transitions. Word has length 171 [2022-02-15 00:52:37,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:37,667 INFO L470 AbstractCegarLoop]: Abstraction has 3036 states and 4523 transitions. [2022-02-15 00:52:37,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:37,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4523 transitions. [2022-02-15 00:52:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-02-15 00:52:37,670 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:37,670 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:37,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:52:37,670 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:37,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1995027153, now seen corresponding path program 1 times [2022-02-15 00:52:37,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:37,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829019830] [2022-02-15 00:52:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:37,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-02-15 00:52:37,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:37,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829019830] [2022-02-15 00:52:37,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829019830] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:37,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:37,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:37,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279346272] [2022-02-15 00:52:37,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:37,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:37,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:37,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:37,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:37,813 INFO L87 Difference]: Start difference. First operand 3036 states and 4523 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:39,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:40,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:42,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:44,768 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 [] [2022-02-15 00:52:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:45,175 INFO L93 Difference]: Finished difference Result 3190 states and 4729 transitions. [2022-02-15 00:52:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-02-15 00:52:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:45,180 INFO L225 Difference]: With dead ends: 3190 [2022-02-15 00:52:45,180 INFO L226 Difference]: Without dead ends: 3190 [2022-02-15 00:52:45,180 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 [2022-02-15 00:52:45,181 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 41 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:45,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 602 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-15 00:52:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2022-02-15 00:52:45,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 3036. [2022-02-15 00:52:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3031 states have (on average 1.488617617947872) internal successors, (4512), 3031 states have internal predecessors, (4512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:45,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4516 transitions. [2022-02-15 00:52:45,206 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4516 transitions. Word has length 203 [2022-02-15 00:52:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:45,206 INFO L470 AbstractCegarLoop]: Abstraction has 3036 states and 4516 transitions. [2022-02-15 00:52:45,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4516 transitions. [2022-02-15 00:52:45,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-02-15 00:52:45,209 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:45,209 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, 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] [2022-02-15 00:52:45,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:52:45,210 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:45,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:45,210 INFO L85 PathProgramCache]: Analyzing trace with hash 615238797, now seen corresponding path program 1 times [2022-02-15 00:52:45,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:45,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706904665] [2022-02-15 00:52:45,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:45,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-02-15 00:52:45,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:45,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706904665] [2022-02-15 00:52:45,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706904665] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:45,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:45,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:45,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709070579] [2022-02-15 00:52:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:45,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:45,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:45,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:45,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:45,335 INFO L87 Difference]: Start difference. First operand 3036 states and 4516 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:47,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:48,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:50,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:51,208 INFO L93 Difference]: Finished difference Result 3490 states and 5075 transitions. [2022-02-15 00:52:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:51,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:52:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:51,213 INFO L225 Difference]: With dead ends: 3490 [2022-02-15 00:52:51,213 INFO L226 Difference]: Without dead ends: 3490 [2022-02-15 00:52:51,213 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 [2022-02-15 00:52:51,213 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 126 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:51,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 415 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:52:51,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3490 states. [2022-02-15 00:52:51,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3490 to 3036. [2022-02-15 00:52:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3031 states have (on average 1.4708017156054107) internal successors, (4458), 3031 states have internal predecessors, (4458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:51,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4462 transitions. [2022-02-15 00:52:51,257 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4462 transitions. Word has length 225 [2022-02-15 00:52:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:51,257 INFO L470 AbstractCegarLoop]: Abstraction has 3036 states and 4462 transitions. [2022-02-15 00:52:51,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:51,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4462 transitions. [2022-02-15 00:52:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-02-15 00:52:51,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:51,268 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:51,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:52:51,268 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:51,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:51,268 INFO L85 PathProgramCache]: Analyzing trace with hash -272806771, now seen corresponding path program 1 times [2022-02-15 00:52:51,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:51,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825606844] [2022-02-15 00:52:51,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:51,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:51,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:51,463 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 339 proven. 38 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-02-15 00:52:51,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:51,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825606844] [2022-02-15 00:52:51,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825606844] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:52:51,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57613410] [2022-02-15 00:52:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:51,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:52:51,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:52:51,482 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) [2022-02-15 00:52:51,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:52:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:52,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-15 00:52:52,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:52:52,366 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:52:52,366 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:52:52,413 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:52:52,413 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:52:52,536 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:52:52,536 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:52:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 298 proven. 64 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-15 00:52:52,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:52:52,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-02-15 00:52:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-02-15 00:52:53,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57613410] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:52:53,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:52:53,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 13 [2022-02-15 00:52:53,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048326787] [2022-02-15 00:52:53,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:53,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:53,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:53,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-02-15 00:52:53,017 INFO L87 Difference]: Start difference. First operand 3036 states and 4462 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2022-02-15 00:52:54,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:54,986 INFO L93 Difference]: Finished difference Result 3770 states and 5474 transitions. [2022-02-15 00:52:54,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:52:54,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 225 [2022-02-15 00:52:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:54,992 INFO L225 Difference]: With dead ends: 3770 [2022-02-15 00:52:54,992 INFO L226 Difference]: Without dead ends: 3770 [2022-02-15 00:52:54,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-02-15 00:52:54,996 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 254 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:54,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 371 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-15 00:52:54,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2022-02-15 00:52:55,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3281. [2022-02-15 00:52:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3276 states have (on average 1.4697802197802199) internal successors, (4815), 3276 states have internal predecessors, (4815), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4819 transitions. [2022-02-15 00:52:55,026 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4819 transitions. Word has length 225 [2022-02-15 00:52:55,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:55,026 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4819 transitions. [2022-02-15 00:52:55,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2022-02-15 00:52:55,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4819 transitions. [2022-02-15 00:52:55,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-02-15 00:52:55,029 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:55,029 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:55,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-15 00:52:55,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:52:55,264 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:55,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2026060561, now seen corresponding path program 1 times [2022-02-15 00:52:55,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:55,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966640906] [2022-02-15 00:52:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:55,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:55,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:55,423 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-15 00:52:55,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:55,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966640906] [2022-02-15 00:52:55,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966640906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:55,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:55,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:55,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534423280] [2022-02-15 00:52:55,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:55,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:55,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:55,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:55,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:55,424 INFO L87 Difference]: Start difference. First operand 3281 states and 4819 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:56,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:59,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:01,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:01,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:01,634 INFO L93 Difference]: Finished difference Result 3735 states and 5385 transitions. [2022-02-15 00:53:01,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:01,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 226 [2022-02-15 00:53:01,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:01,639 INFO L225 Difference]: With dead ends: 3735 [2022-02-15 00:53:01,639 INFO L226 Difference]: Without dead ends: 3735 [2022-02-15 00:53:01,639 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 [2022-02-15 00:53:01,639 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 124 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:01,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 380 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:53:01,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2022-02-15 00:53:01,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3281. [2022-02-15 00:53:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3276 states have (on average 1.4554334554334554) internal successors, (4768), 3276 states have internal predecessors, (4768), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:01,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4772 transitions. [2022-02-15 00:53:01,667 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4772 transitions. Word has length 226 [2022-02-15 00:53:01,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:01,667 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4772 transitions. [2022-02-15 00:53:01,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:01,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4772 transitions. [2022-02-15 00:53:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-15 00:53:01,671 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:01,671 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:01,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:53:01,671 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:01,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:01,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1121259521, now seen corresponding path program 1 times [2022-02-15 00:53:01,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:01,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88887997] [2022-02-15 00:53:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:01,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-15 00:53:01,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:01,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88887997] [2022-02-15 00:53:01,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88887997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:01,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:01,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:01,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985767880] [2022-02-15 00:53:01,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:01,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:01,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:01,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:01,824 INFO L87 Difference]: Start difference. First operand 3281 states and 4772 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:04,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:05,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:06,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:06,458 INFO L93 Difference]: Finished difference Result 3407 states and 4942 transitions. [2022-02-15 00:53:06,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:06,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:53:06,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:06,462 INFO L225 Difference]: With dead ends: 3407 [2022-02-15 00:53:06,462 INFO L226 Difference]: Without dead ends: 3407 [2022-02-15 00:53:06,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:53:06,463 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 39 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:06,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 591 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 00:53:06,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2022-02-15 00:53:06,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 3281. [2022-02-15 00:53:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3276 states have (on average 1.4532967032967032) internal successors, (4761), 3276 states have internal predecessors, (4761), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:06,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4765 transitions. [2022-02-15 00:53:06,521 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4765 transitions. Word has length 227 [2022-02-15 00:53:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:06,521 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4765 transitions. [2022-02-15 00:53:06,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4765 transitions. [2022-02-15 00:53:06,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-15 00:53:06,525 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:06,525 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:06,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:53:06,525 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:06,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:06,526 INFO L85 PathProgramCache]: Analyzing trace with hash -159642178, now seen corresponding path program 1 times [2022-02-15 00:53:06,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:06,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819500866] [2022-02-15 00:53:06,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:06,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:06,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-02-15 00:53:06,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:06,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819500866] [2022-02-15 00:53:06,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819500866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:06,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:06,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:06,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614488285] [2022-02-15 00:53:06,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:06,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:06,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:06,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:06,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:06,642 INFO L87 Difference]: Start difference. First operand 3281 states and 4765 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:09,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:10,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:10,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:10,758 INFO L93 Difference]: Finished difference Result 3373 states and 4893 transitions. [2022-02-15 00:53:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:10,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:53:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:10,763 INFO L225 Difference]: With dead ends: 3373 [2022-02-15 00:53:10,763 INFO L226 Difference]: Without dead ends: 3373 [2022-02-15 00:53:10,763 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 [2022-02-15 00:53:10,763 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 30 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:10,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 00:53:10,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2022-02-15 00:53:10,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3281. [2022-02-15 00:53:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3276 states have (on average 1.4511599511599511) internal successors, (4754), 3276 states have internal predecessors, (4754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4758 transitions. [2022-02-15 00:53:10,785 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4758 transitions. Word has length 227 [2022-02-15 00:53:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:10,785 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4758 transitions. [2022-02-15 00:53:10,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4758 transitions. [2022-02-15 00:53:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-02-15 00:53:10,788 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:10,789 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:10,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 00:53:10,789 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:10,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1125531471, now seen corresponding path program 1 times [2022-02-15 00:53:10,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:10,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727126395] [2022-02-15 00:53:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-02-15 00:53:10,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:10,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727126395] [2022-02-15 00:53:10,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727126395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:10,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:10,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:10,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772617308] [2022-02-15 00:53:10,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:10,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:10,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:10,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:10,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:10,930 INFO L87 Difference]: Start difference. First operand 3281 states and 4758 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) [2022-02-15 00:53:12,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:14,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:15,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:17,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:17,461 INFO L93 Difference]: Finished difference Result 3659 states and 5286 transitions. [2022-02-15 00:53:17,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:17,461 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 229 [2022-02-15 00:53:17,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:17,465 INFO L225 Difference]: With dead ends: 3659 [2022-02-15 00:53:17,465 INFO L226 Difference]: Without dead ends: 3659 [2022-02-15 00:53:17,466 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 [2022-02-15 00:53:17,466 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 41 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:17,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 603 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-02-15 00:53:17,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3659 states. [2022-02-15 00:53:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3659 to 3491. [2022-02-15 00:53:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 3486 states have (on average 1.4500860585197934) internal successors, (5055), 3486 states have internal predecessors, (5055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5059 transitions. [2022-02-15 00:53:17,493 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 5059 transitions. Word has length 229 [2022-02-15 00:53:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:17,493 INFO L470 AbstractCegarLoop]: Abstraction has 3491 states and 5059 transitions. [2022-02-15 00:53:17,493 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) [2022-02-15 00:53:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 5059 transitions. [2022-02-15 00:53:17,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-15 00:53:17,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:17,496 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:17,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 00:53:17,496 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:17,497 INFO L85 PathProgramCache]: Analyzing trace with hash -597331293, now seen corresponding path program 1 times [2022-02-15 00:53:17,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:17,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549983603] [2022-02-15 00:53:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:17,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:53:17,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:17,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549983603] [2022-02-15 00:53:17,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549983603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:17,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:17,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:17,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026863362] [2022-02-15 00:53:17,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:17,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:17,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:17,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:17,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:17,666 INFO L87 Difference]: Start difference. First operand 3491 states and 5059 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:18,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:21,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:23,258 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 [] [2022-02-15 00:53:23,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:23,747 INFO L93 Difference]: Finished difference Result 3945 states and 5625 transitions. [2022-02-15 00:53:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-02-15 00:53:23,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:23,751 INFO L225 Difference]: With dead ends: 3945 [2022-02-15 00:53:23,751 INFO L226 Difference]: Without dead ends: 3945 [2022-02-15 00:53:23,752 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 [2022-02-15 00:53:23,752 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 119 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:23,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 370 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:53:23,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2022-02-15 00:53:23,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3281. [2022-02-15 00:53:23,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3276 states have (on average 1.438949938949939) internal successors, (4714), 3276 states have internal predecessors, (4714), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:23,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4718 transitions. [2022-02-15 00:53:23,783 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4718 transitions. Word has length 231 [2022-02-15 00:53:23,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:23,783 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4718 transitions. [2022-02-15 00:53:23,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:23,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4718 transitions. [2022-02-15 00:53:23,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-02-15 00:53:23,786 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:23,786 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:23,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 00:53:23,787 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:23,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:23,787 INFO L85 PathProgramCache]: Analyzing trace with hash -446725025, now seen corresponding path program 1 times [2022-02-15 00:53:23,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:23,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452702168] [2022-02-15 00:53:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:23,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:24,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-15 00:53:24,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:24,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452702168] [2022-02-15 00:53:24,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452702168] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:24,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:24,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:53:24,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576538694] [2022-02-15 00:53:24,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:24,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:53:24,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:24,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:53:24,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:53:24,209 INFO L87 Difference]: Start difference. First operand 3281 states and 4718 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-02-15 00:53:25,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:27,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:29,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:30,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:32,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:34,536 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 [] [2022-02-15 00:53:34,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:34,992 INFO L93 Difference]: Finished difference Result 3289 states and 4728 transitions. [2022-02-15 00:53:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:53:34,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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 235 [2022-02-15 00:53:34,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:34,995 INFO L225 Difference]: With dead ends: 3289 [2022-02-15 00:53:34,995 INFO L226 Difference]: Without dead ends: 3281 [2022-02-15 00:53:34,995 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 [2022-02-15 00:53:34,995 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:34,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2022-02-15 00:53:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2022-02-15 00:53:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3281. [2022-02-15 00:53:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3276 states have (on average 1.4386446886446886) internal successors, (4713), 3276 states have internal predecessors, (4713), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:35,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4717 transitions. [2022-02-15 00:53:35,019 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4717 transitions. Word has length 235 [2022-02-15 00:53:35,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:35,019 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4717 transitions. [2022-02-15 00:53:35,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 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) [2022-02-15 00:53:35,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4717 transitions. [2022-02-15 00:53:35,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-02-15 00:53:35,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:35,022 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:35,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 00:53:35,022 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:35,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1106362336, now seen corresponding path program 1 times [2022-02-15 00:53:35,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:35,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991628492] [2022-02-15 00:53:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:35,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:35,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 151 proven. 269 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:53:35,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:35,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991628492] [2022-02-15 00:53:35,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991628492] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:53:35,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413343580] [2022-02-15 00:53:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:35,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:53:35,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:53:35,705 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) [2022-02-15 00:53:35,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:53:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:36,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 241 conjunts are in the unsatisfiable core [2022-02-15 00:53:36,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:53:36,812 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62713 treesize of output 58328 [2022-02-15 00:53:36,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,876 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55477 treesize of output 39384 [2022-02-15 00:53:36,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:36,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,048 INFO L244 Elim1Store]: Index analysis took 118 ms [2022-02-15 00:53:37,049 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17488 treesize of output 17507 [2022-02-15 00:53:37,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,090 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11296 treesize of output 11315 [2022-02-15 00:53:37,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:53:37,209 INFO L353 Elim1Store]: treesize reduction 138, result has 16.9 percent of original size [2022-02-15 00:53:37,209 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 13330 treesize of output 5105 [2022-02-15 00:53:37,227 INFO L190 IndexEqualityManager]: detected not equals via solver