/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:52:40,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:52:40,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:52:40,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:52:40,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:52:40,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:52:40,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:52:40,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:52:40,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:52:40,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:52:40,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:52:40,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:52:40,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:52:40,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:52:40,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:52:40,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:52:40,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:52:40,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:52:40,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:52:40,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:52:40,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:52:40,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:52:40,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:52:40,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:52:40,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:52:40,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:52:40,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:52:40,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:52:40,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:52:40,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:52:40,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:52:40,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:52:40,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:52:40,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:52:40,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:52:40,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:52:40,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:52:40,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:52:40,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:52:40,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:52:40,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:52:40,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:52:40,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:52:40,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:52:40,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:52:40,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:52:40,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:52:40,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:52:40,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:52:40,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:52:40,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:52:40,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:52:40,616 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:52:40,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:52:40,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:52:40,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:52:40,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:52:40,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:52:40,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:52:40,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:52:40,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:52:40,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:52:40,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:52:40,617 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:52:40,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:52:40,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:52:40,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:52:40,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:52:40,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:52:40,837 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:52:40,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-02-15 00:52:40,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56aacafd/e6e01182862e4746a27ecf3fd58433d8/FLAGeac40cf72 [2022-02-15 00:52:41,345 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:52:41,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-02-15 00:52:41,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56aacafd/e6e01182862e4746a27ecf3fd58433d8/FLAGeac40cf72 [2022-02-15 00:52:41,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56aacafd/e6e01182862e4746a27ecf3fd58433d8 [2022-02-15 00:52:41,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:52:41,378 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:52:41,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:52:41,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:52:41,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:52:41,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1058986a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41, skipping insertion in model container [2022-02-15 00:52:41,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:52:41,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:52:41,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c[76259,76272] [2022-02-15 00:52:41,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:52:41,789 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:52:41,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c[76259,76272] [2022-02-15 00:52:41,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:52:41,875 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:52:41,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41 WrapperNode [2022-02-15 00:52:41,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:52:41,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:52:41,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:52:41,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:52:41,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:52:41,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:52:41,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:52:41,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:52:41,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (1/1) ... [2022-02-15 00:52:41,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:52:41,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:52:41,995 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 00:52:42,002 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 00:52:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:52:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:52:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:52:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:52:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:52:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:52:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:52:42,044 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:52:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:52:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:52:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:52:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:52:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:52:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:52:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:52:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:52:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:52:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:52:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:52:42,048 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:52:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:52:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:52:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:52:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:52:42,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:52:42,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:52:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:52:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:52:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:52:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:52:42,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:52:42,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:52:42,238 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:52:42,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:52:42,917 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:52:43,346 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:52:43,347 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:52:43,355 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:52:43,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:52:43,363 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:52:43,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:52:43 BoogieIcfgContainer [2022-02-15 00:52:43,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:52:43,366 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:52:43,366 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:52:43,366 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:52:43,368 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:52:43" (1/1) ... [2022-02-15 00:52:43,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:52:43 BasicIcfg [2022-02-15 00:52:43,430 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:52:43,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:52:43,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:52:43,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:52:43,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:52:41" (1/4) ... [2022-02-15 00:52:43,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181010b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:52:43, skipping insertion in model container [2022-02-15 00:52:43,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:52:41" (2/4) ... [2022-02-15 00:52:43,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181010b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:52:43, skipping insertion in model container [2022-02-15 00:52:43,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:52:43" (3/4) ... [2022-02-15 00:52:43,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@181010b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:52:43, skipping insertion in model container [2022-02-15 00:52:43,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:52:43" (4/4) ... [2022-02-15 00:52:43,439 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cJordan [2022-02-15 00:52:43,442 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:52:43,443 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:52:43,479 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:52:43,483 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 00:52:43,484 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:52:43,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 00:52:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-15 00:52:43,501 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:43,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:43,501 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:43,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:43,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-02-15 00:52:43,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:43,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839632418] [2022-02-15 00:52:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:43,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:43,917 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 00:52:43,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:43,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839632418] [2022-02-15 00:52:43,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839632418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:43,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:43,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:43,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832790035] [2022-02-15 00:52:43,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:43,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:43,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:43,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:43,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:43,946 INFO L87 Difference]: Start difference. First operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:45,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:45,863 INFO L93 Difference]: Finished difference Result 297 states and 497 transitions. [2022-02-15 00:52:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:45,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-02-15 00:52:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:45,873 INFO L225 Difference]: With dead ends: 297 [2022-02-15 00:52:45,873 INFO L226 Difference]: Without dead ends: 271 [2022-02-15 00:52:45,874 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 00:52:45,881 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 164 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:45,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 493 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-15 00:52:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-02-15 00:52:45,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 187. [2022-02-15 00:52:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.6153846153846154) internal successors, (294), 182 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 298 transitions. [2022-02-15 00:52:45,938 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 298 transitions. Word has length 49 [2022-02-15 00:52:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:45,938 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 298 transitions. [2022-02-15 00:52:45,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 298 transitions. [2022-02-15 00:52:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 00:52:45,944 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:45,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:45,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:52:45,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:45,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1256262427, now seen corresponding path program 1 times [2022-02-15 00:52:45,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:45,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758510068] [2022-02-15 00:52:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:45,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:46,136 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 00:52:46,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:46,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758510068] [2022-02-15 00:52:46,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758510068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:46,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:46,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:46,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090797592] [2022-02-15 00:52:46,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:46,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:46,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:46,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:46,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:46,138 INFO L87 Difference]: Start difference. First operand 187 states and 298 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:48,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:48,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:48,626 INFO L93 Difference]: Finished difference Result 215 states and 338 transitions. [2022-02-15 00:52:48,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:48,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-15 00:52:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:48,627 INFO L225 Difference]: With dead ends: 215 [2022-02-15 00:52:48,627 INFO L226 Difference]: Without dead ends: 215 [2022-02-15 00:52:48,628 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 00:52:48,628 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 22 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:48,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 511 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:52:48,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-02-15 00:52:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-02-15 00:52:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.621761658031088) internal successors, (313), 193 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 317 transitions. [2022-02-15 00:52:48,634 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 317 transitions. Word has length 50 [2022-02-15 00:52:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:48,634 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 317 transitions. [2022-02-15 00:52:48,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 317 transitions. [2022-02-15 00:52:48,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-15 00:52:48,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:48,637 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:48,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:52:48,637 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:48,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash 821038722, now seen corresponding path program 1 times [2022-02-15 00:52:48,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:48,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482337452] [2022-02-15 00:52:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:48,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:48,819 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 00:52:48,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:48,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482337452] [2022-02-15 00:52:48,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482337452] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:48,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:48,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:48,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21508849] [2022-02-15 00:52:48,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:48,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:48,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:48,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:48,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:48,822 INFO L87 Difference]: Start difference. First operand 198 states and 317 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:50,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:52,533 WARN L534 Checker$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 00:52:54,553 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 00:52:54,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:54,993 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-02-15 00:52:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:54,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-02-15 00:52:54,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:54,995 INFO L225 Difference]: With dead ends: 215 [2022-02-15 00:52:54,995 INFO L226 Difference]: Without dead ends: 215 [2022-02-15 00:52:54,995 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 00:52:54,996 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 24 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:54,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 513 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:52:54,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-02-15 00:52:55,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-02-15 00:52:55,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.616580310880829) internal successors, (312), 193 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 316 transitions. [2022-02-15 00:52:55,002 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 316 transitions. Word has length 63 [2022-02-15 00:52:55,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:55,003 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 316 transitions. [2022-02-15 00:52:55,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:55,003 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 316 transitions. [2022-02-15 00:52:55,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:52:55,004 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:55,004 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:55,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:52:55,004 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:55,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:55,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2114147329, now seen corresponding path program 1 times [2022-02-15 00:52:55,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:55,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222620537] [2022-02-15 00:52:55,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:55,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:55,141 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 00:52:55,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:55,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222620537] [2022-02-15 00:52:55,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222620537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:55,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:55,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:55,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871132033] [2022-02-15 00:52:55,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:55,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:55,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:55,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:55,146 INFO L87 Difference]: Start difference. First operand 198 states and 316 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:57,401 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 00:52:59,426 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 00:53:00,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:00,089 INFO L93 Difference]: Finished difference Result 214 states and 335 transitions. [2022-02-15 00:53:00,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:00,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 00:53:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:00,090 INFO L225 Difference]: With dead ends: 214 [2022-02-15 00:53:00,090 INFO L226 Difference]: Without dead ends: 214 [2022-02-15 00:53:00,090 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 00:53:00,091 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:00,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:53:00,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-15 00:53:00,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 198. [2022-02-15 00:53:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.61139896373057) internal successors, (311), 193 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 315 transitions. [2022-02-15 00:53:00,095 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 315 transitions. Word has length 64 [2022-02-15 00:53:00,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:00,096 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 315 transitions. [2022-02-15 00:53:00,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 315 transitions. [2022-02-15 00:53:00,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:53:00,097 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:00,097 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:00,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:53:00,097 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 826373151, now seen corresponding path program 1 times [2022-02-15 00:53:00,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:00,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423094909] [2022-02-15 00:53:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:00,259 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 00:53:00,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:00,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423094909] [2022-02-15 00:53:00,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423094909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:00,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:00,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:00,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80401664] [2022-02-15 00:53:00,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:00,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:00,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:00,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:00,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:00,262 INFO L87 Difference]: Start difference. First operand 198 states and 315 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:02,447 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 00:53:03,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:03,567 INFO L93 Difference]: Finished difference Result 321 states and 506 transitions. [2022-02-15 00:53:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 00:53:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:03,570 INFO L225 Difference]: With dead ends: 321 [2022-02-15 00:53:03,570 INFO L226 Difference]: Without dead ends: 321 [2022-02-15 00:53:03,570 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 00:53:03,570 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 159 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:03,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-15 00:53:03,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-02-15 00:53:03,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 210. [2022-02-15 00:53:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.5951219512195123) internal successors, (327), 205 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2022-02-15 00:53:03,579 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 64 [2022-02-15 00:53:03,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:03,580 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2022-02-15 00:53:03,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2022-02-15 00:53:03,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:53:03,581 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:03,581 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:03,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:53:03,581 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:03,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash -230789025, now seen corresponding path program 1 times [2022-02-15 00:53:03,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:03,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974976634] [2022-02-15 00:53:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:03,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:03,692 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 00:53:03,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:03,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974976634] [2022-02-15 00:53:03,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974976634] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:03,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:03,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:03,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189399512] [2022-02-15 00:53:03,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:03,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:03,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:03,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:03,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:03,694 INFO L87 Difference]: Start difference. First operand 210 states and 331 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:04,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:06,862 WARN L534 Checker$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 00:53:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:08,231 INFO L93 Difference]: Finished difference Result 321 states and 503 transitions. [2022-02-15 00:53:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:08,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 00:53:08,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:08,233 INFO L225 Difference]: With dead ends: 321 [2022-02-15 00:53:08,233 INFO L226 Difference]: Without dead ends: 321 [2022-02-15 00:53:08,233 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 00:53:08,233 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 153 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:08,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 00:53:08,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-02-15 00:53:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 215. [2022-02-15 00:53:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5904761904761904) internal successors, (334), 210 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:08,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 338 transitions. [2022-02-15 00:53:08,238 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 338 transitions. Word has length 64 [2022-02-15 00:53:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:08,238 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 338 transitions. [2022-02-15 00:53:08,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 338 transitions. [2022-02-15 00:53:08,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-15 00:53:08,238 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:08,239 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:08,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:53:08,239 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:08,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:08,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1540051073, now seen corresponding path program 1 times [2022-02-15 00:53:08,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:08,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491010640] [2022-02-15 00:53:08,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:08,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:08,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:08,380 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 00:53:08,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:08,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491010640] [2022-02-15 00:53:08,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491010640] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:08,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:08,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:08,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616004854] [2022-02-15 00:53:08,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:08,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:08,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:08,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:08,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:08,382 INFO L87 Difference]: Start difference. First operand 215 states and 338 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:11,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:12,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:13,263 INFO L93 Difference]: Finished difference Result 320 states and 499 transitions. [2022-02-15 00:53:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:13,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-15 00:53:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:13,266 INFO L225 Difference]: With dead ends: 320 [2022-02-15 00:53:13,266 INFO L226 Difference]: Without dead ends: 320 [2022-02-15 00:53:13,266 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 00:53:13,266 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 151 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:13,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:53:13,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-15 00:53:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-02-15 00:53:13,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 211 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 337 transitions. [2022-02-15 00:53:13,271 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 337 transitions. Word has length 64 [2022-02-15 00:53:13,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:13,271 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 337 transitions. [2022-02-15 00:53:13,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:13,271 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 337 transitions. [2022-02-15 00:53:13,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 00:53:13,272 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:13,272 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:13,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:53:13,272 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:13,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1577451682, now seen corresponding path program 1 times [2022-02-15 00:53:13,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:13,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976834081] [2022-02-15 00:53:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:13,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:13,380 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 00:53:13,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:13,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976834081] [2022-02-15 00:53:13,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976834081] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:13,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:13,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:13,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825081113] [2022-02-15 00:53:13,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:13,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:13,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:13,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:13,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:13,381 INFO L87 Difference]: Start difference. First operand 216 states and 337 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:16,106 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 00:53:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:16,553 INFO L93 Difference]: Finished difference Result 320 states and 496 transitions. [2022-02-15 00:53:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:16,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-15 00:53:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:16,555 INFO L225 Difference]: With dead ends: 320 [2022-02-15 00:53:16,555 INFO L226 Difference]: Without dead ends: 320 [2022-02-15 00:53:16,555 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 00:53:16,556 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:16,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 00:53:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-15 00:53:16,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-02-15 00:53:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5639810426540284) internal successors, (330), 211 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 334 transitions. [2022-02-15 00:53:16,565 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 334 transitions. Word has length 65 [2022-02-15 00:53:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:16,565 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 334 transitions. [2022-02-15 00:53:16,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:16,565 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 334 transitions. [2022-02-15 00:53:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 00:53:16,566 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:16,566 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:16,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:53:16,566 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:16,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:16,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1615094397, now seen corresponding path program 1 times [2022-02-15 00:53:16,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:16,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089939764] [2022-02-15 00:53:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:16,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:16,673 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 00:53:16,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:16,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089939764] [2022-02-15 00:53:16,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089939764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:16,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:16,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:16,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142321770] [2022-02-15 00:53:16,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:16,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:16,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:16,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:16,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:16,675 INFO L87 Difference]: Start difference. First operand 216 states and 334 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:19,664 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 00:53:21,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:23,383 WARN L534 Checker$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 00:53:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:23,694 INFO L93 Difference]: Finished difference Result 229 states and 350 transitions. [2022-02-15 00:53:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-15 00:53:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:23,696 INFO L225 Difference]: With dead ends: 229 [2022-02-15 00:53:23,696 INFO L226 Difference]: Without dead ends: 229 [2022-02-15 00:53:23,696 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 00:53:23,697 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 20 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:23,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 00:53:23,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-02-15 00:53:23,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 216. [2022-02-15 00:53:23,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5592417061611374) internal successors, (329), 211 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:23,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2022-02-15 00:53:23,701 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 66 [2022-02-15 00:53:23,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:23,701 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2022-02-15 00:53:23,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2022-02-15 00:53:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:53:23,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:23,702 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:23,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:53:23,702 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash -181923963, now seen corresponding path program 1 times [2022-02-15 00:53:23,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:23,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278240479] [2022-02-15 00:53:23,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:23,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:23,809 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 00:53:23,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:23,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278240479] [2022-02-15 00:53:23,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278240479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:23,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:23,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:23,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336711682] [2022-02-15 00:53:23,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:23,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:23,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:23,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:23,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:23,818 INFO L87 Difference]: Start difference. First operand 216 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:27,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:27,903 INFO L93 Difference]: Finished difference Result 219 states and 336 transitions. [2022-02-15 00:53:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:27,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-15 00:53:27,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:27,905 INFO L225 Difference]: With dead ends: 219 [2022-02-15 00:53:27,905 INFO L226 Difference]: Without dead ends: 219 [2022-02-15 00:53:27,905 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 00:53:27,905 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:27,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 00:53:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-02-15 00:53:27,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-02-15 00:53:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5545023696682465) internal successors, (328), 211 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 332 transitions. [2022-02-15 00:53:27,909 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 332 transitions. Word has length 67 [2022-02-15 00:53:27,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:27,910 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 332 transitions. [2022-02-15 00:53:27,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:27,910 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 332 transitions. [2022-02-15 00:53:27,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 00:53:27,910 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:27,910 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:27,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:53:27,910 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:27,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:27,911 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-02-15 00:53:27,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:27,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183465797] [2022-02-15 00:53:27,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:27,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:28,016 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 00:53:28,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:28,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183465797] [2022-02-15 00:53:28,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183465797] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:28,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:28,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:28,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505223083] [2022-02-15 00:53:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:28,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:28,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:28,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:28,018 INFO L87 Difference]: Start difference. First operand 216 states and 332 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:30,797 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 00:53:32,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:33,066 INFO L93 Difference]: Finished difference Result 320 states and 493 transitions. [2022-02-15 00:53:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:33,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-15 00:53:33,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:33,068 INFO L225 Difference]: With dead ends: 320 [2022-02-15 00:53:33,068 INFO L226 Difference]: Without dead ends: 320 [2022-02-15 00:53:33,068 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 00:53:33,069 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 128 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:33,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 00:53:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-15 00:53:33,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 238. [2022-02-15 00:53:33,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.592274678111588) internal successors, (371), 233 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 375 transitions. [2022-02-15 00:53:33,073 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 375 transitions. Word has length 67 [2022-02-15 00:53:33,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:33,073 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 375 transitions. [2022-02-15 00:53:33,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:33,073 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 375 transitions. [2022-02-15 00:53:33,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-15 00:53:33,074 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:33,074 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:33,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:53:33,074 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:33,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:33,075 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-02-15 00:53:33,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:33,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354470588] [2022-02-15 00:53:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-15 00:53:33,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:33,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354470588] [2022-02-15 00:53:33,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354470588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:33,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:33,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:33,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829016930] [2022-02-15 00:53:33,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:33,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:33,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:33,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:33,190 INFO L87 Difference]: Start difference. First operand 238 states and 375 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:34,725 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 00:53:37,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:39,146 WARN L534 Checker$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 00:53:39,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:39,506 INFO L93 Difference]: Finished difference Result 280 states and 435 transitions. [2022-02-15 00:53:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:39,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-02-15 00:53:39,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:39,508 INFO L225 Difference]: With dead ends: 280 [2022-02-15 00:53:39,508 INFO L226 Difference]: Without dead ends: 280 [2022-02-15 00:53:39,508 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 00:53:39,508 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 30 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:39,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 535 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:53:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-15 00:53:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 260. [2022-02-15 00:53:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.588235294117647) internal successors, (405), 255 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 409 transitions. [2022-02-15 00:53:39,513 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 409 transitions. Word has length 95 [2022-02-15 00:53:39,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:39,513 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 409 transitions. [2022-02-15 00:53:39,513 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 00:53:39,513 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 409 transitions. [2022-02-15 00:53:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-15 00:53:39,514 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:39,514 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:39,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:53:39,514 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:39,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:39,514 INFO L85 PathProgramCache]: Analyzing trace with hash 664162408, now seen corresponding path program 1 times [2022-02-15 00:53:39,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:39,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128723432] [2022-02-15 00:53:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:39,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:39,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:39,609 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:53:39,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:39,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128723432] [2022-02-15 00:53:39,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128723432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:39,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:39,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:39,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279553180] [2022-02-15 00:53:39,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:39,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:39,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:39,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:39,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:39,611 INFO L87 Difference]: Start difference. First operand 260 states and 409 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:42,698 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 00:53:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:43,787 INFO L93 Difference]: Finished difference Result 380 states and 591 transitions. [2022-02-15 00:53:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:43,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-02-15 00:53:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:43,789 INFO L225 Difference]: With dead ends: 380 [2022-02-15 00:53:43,789 INFO L226 Difference]: Without dead ends: 380 [2022-02-15 00:53:43,789 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 00:53:43,790 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 151 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:43,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 634 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 611 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 00:53:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-15 00:53:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 276. [2022-02-15 00:53:43,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5756457564575646) internal successors, (427), 271 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 431 transitions. [2022-02-15 00:53:43,794 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 431 transitions. Word has length 108 [2022-02-15 00:53:43,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:43,794 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 431 transitions. [2022-02-15 00:53:43,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:43,794 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 431 transitions. [2022-02-15 00:53:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 00:53:43,795 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:43,795 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:43,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:53:43,795 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:43,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:43,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-02-15 00:53:43,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:43,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555945354] [2022-02-15 00:53:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-15 00:53:43,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:43,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555945354] [2022-02-15 00:53:43,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555945354] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:43,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:43,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:43,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465167804] [2022-02-15 00:53:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:43,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:43,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:43,899 INFO L87 Difference]: Start difference. First operand 276 states and 431 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:46,687 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 00:53:48,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:48,512 INFO L93 Difference]: Finished difference Result 289 states and 446 transitions. [2022-02-15 00:53:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:48,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-02-15 00:53:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:48,513 INFO L225 Difference]: With dead ends: 289 [2022-02-15 00:53:48,513 INFO L226 Difference]: Without dead ends: 289 [2022-02-15 00:53:48,514 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 00:53:48,514 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 20 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:48,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 600 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 00:53:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-02-15 00:53:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-02-15 00:53:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5719557195571956) internal successors, (426), 271 states have internal predecessors, (426), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 430 transitions. [2022-02-15 00:53:48,518 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 430 transitions. Word has length 109 [2022-02-15 00:53:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:48,518 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 430 transitions. [2022-02-15 00:53:48,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 430 transitions. [2022-02-15 00:53:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-15 00:53:48,519 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:48,519 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:48,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:53:48,519 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:48,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:48,520 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-02-15 00:53:48,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:48,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395057101] [2022-02-15 00:53:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:48,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:48,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-15 00:53:48,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:48,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395057101] [2022-02-15 00:53:48,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395057101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:48,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:48,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:53:48,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500558547] [2022-02-15 00:53:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:48,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:53:48,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:53:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:53:48,619 INFO L87 Difference]: Start difference. First operand 276 states and 430 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:51,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:53,929 WARN L534 Checker$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 00:53:54,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:54,289 INFO L93 Difference]: Finished difference Result 285 states and 441 transitions. [2022-02-15 00:53:54,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 00:53:54,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-15 00:53:54,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:54,290 INFO L225 Difference]: With dead ends: 285 [2022-02-15 00:53:54,290 INFO L226 Difference]: Without dead ends: 285 [2022-02-15 00:53:54,291 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 00:53:54,291 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:54,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:53:54,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-02-15 00:53:54,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-02-15 00:53:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5607142857142857) internal successors, (437), 280 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-02-15 00:53:54,296 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 110 [2022-02-15 00:53:54,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:54,296 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-02-15 00:53:54,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:54,296 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-02-15 00:53:54,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-15 00:53:54,297 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:54,297 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:54,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:53:54,298 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:54,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:54,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1418030591, now seen corresponding path program 1 times [2022-02-15 00:53:54,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:54,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365423007] [2022-02-15 00:53:54,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:54,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:53:54,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:54,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365423007] [2022-02-15 00:53:54,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365423007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:54,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:54,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:54,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106720474] [2022-02-15 00:53:54,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:54,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:54,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:54,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:54,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:54,425 INFO L87 Difference]: Start difference. First operand 285 states and 441 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:57,563 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 00:53:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:58,338 INFO L93 Difference]: Finished difference Result 376 states and 566 transitions. [2022-02-15 00:53:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:58,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-15 00:53:58,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:58,340 INFO L225 Difference]: With dead ends: 376 [2022-02-15 00:53:58,340 INFO L226 Difference]: Without dead ends: 376 [2022-02-15 00:53:58,340 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 00:53:58,340 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 153 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:58,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 00:53:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-02-15 00:53:58,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 285. [2022-02-15 00:53:58,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5464285714285715) internal successors, (433), 280 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:58,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 437 transitions. [2022-02-15 00:53:58,345 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 437 transitions. Word has length 112 [2022-02-15 00:53:58,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:58,345 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 437 transitions. [2022-02-15 00:53:58,345 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 00:53:58,345 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 437 transitions. [2022-02-15 00:53:58,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-15 00:53:58,346 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:58,346 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:58,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:53:58,346 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-02-15 00:53:58,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:58,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372473290] [2022-02-15 00:53:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:58,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:58,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:53:58,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:58,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372473290] [2022-02-15 00:53:58,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372473290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:58,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:58,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:58,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707027884] [2022-02-15 00:53:58,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:58,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:58,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:58,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:58,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:58,440 INFO L87 Difference]: Start difference. First operand 285 states and 437 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:59,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:00,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:02,890 WARN L534 Checker$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 00:54:04,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:04,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:04,654 INFO L93 Difference]: Finished difference Result 302 states and 458 transitions. [2022-02-15 00:54:04,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:04,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-02-15 00:54:04,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:04,655 INFO L225 Difference]: With dead ends: 302 [2022-02-15 00:54:04,655 INFO L226 Difference]: Without dead ends: 302 [2022-02-15 00:54:04,656 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 00:54:04,656 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:04,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:54:04,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-02-15 00:54:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-02-15 00:54:04,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.542857142857143) internal successors, (432), 280 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 436 transitions. [2022-02-15 00:54:04,660 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 436 transitions. Word has length 113 [2022-02-15 00:54:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:04,660 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 436 transitions. [2022-02-15 00:54:04,660 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 00:54:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 436 transitions. [2022-02-15 00:54:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-15 00:54:04,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:04,661 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:04,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:54:04,661 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:04,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-02-15 00:54:04,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:04,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230707138] [2022-02-15 00:54:04,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:04,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:54:04,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:04,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230707138] [2022-02-15 00:54:04,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230707138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:04,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:04,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:04,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513975001] [2022-02-15 00:54:04,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:04,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:04,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:04,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:04,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:04,805 INFO L87 Difference]: Start difference. First operand 285 states and 436 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:08,616 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 00:54:09,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:09,050 INFO L93 Difference]: Finished difference Result 392 states and 595 transitions. [2022-02-15 00:54:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:09,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-02-15 00:54:09,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:09,052 INFO L225 Difference]: With dead ends: 392 [2022-02-15 00:54:09,052 INFO L226 Difference]: Without dead ends: 392 [2022-02-15 00:54:09,052 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 00:54:09,052 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:09,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 535 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 534 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 00:54:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-02-15 00:54:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 319. [2022-02-15 00:54:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.5477707006369428) internal successors, (486), 314 states have internal predecessors, (486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 490 transitions. [2022-02-15 00:54:09,057 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 490 transitions. Word has length 117 [2022-02-15 00:54:09,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:09,057 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 490 transitions. [2022-02-15 00:54:09,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 490 transitions. [2022-02-15 00:54:09,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-15 00:54:09,058 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:09,058 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:09,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:54:09,058 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:09,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-02-15 00:54:09,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:09,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800171748] [2022-02-15 00:54:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:09,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:09,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:54:09,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:09,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800171748] [2022-02-15 00:54:09,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800171748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:09,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:09,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:09,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851795078] [2022-02-15 00:54:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:09,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:09,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:09,154 INFO L87 Difference]: Start difference. First operand 319 states and 490 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:11,168 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 00:54:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:11,618 INFO L93 Difference]: Finished difference Result 486 states and 747 transitions. [2022-02-15 00:54:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-02-15 00:54:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:11,620 INFO L225 Difference]: With dead ends: 486 [2022-02-15 00:54:11,620 INFO L226 Difference]: Without dead ends: 486 [2022-02-15 00:54:11,620 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 00:54:11,620 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 133 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:11,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 406 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:54:11,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-02-15 00:54:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 349. [2022-02-15 00:54:11,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.558139534883721) internal successors, (536), 344 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 540 transitions. [2022-02-15 00:54:11,625 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 540 transitions. Word has length 117 [2022-02-15 00:54:11,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:11,625 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 540 transitions. [2022-02-15 00:54:11,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:11,626 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 540 transitions. [2022-02-15 00:54:11,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-15 00:54:11,626 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:11,626 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:11,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:54:11,627 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:11,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-02-15 00:54:11,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:11,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055757484] [2022-02-15 00:54:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:11,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-15 00:54:11,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:11,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055757484] [2022-02-15 00:54:11,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055757484] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:11,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:11,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:11,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994860157] [2022-02-15 00:54:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:11,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:11,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:11,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:11,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:11,736 INFO L87 Difference]: Start difference. First operand 349 states and 540 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:15,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:17,240 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 00:54:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:17,669 INFO L93 Difference]: Finished difference Result 430 states and 651 transitions. [2022-02-15 00:54:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:17,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-02-15 00:54:17,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:17,670 INFO L225 Difference]: With dead ends: 430 [2022-02-15 00:54:17,670 INFO L226 Difference]: Without dead ends: 430 [2022-02-15 00:54:17,671 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 00:54:17,671 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:17,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:54:17,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-15 00:54:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 349. [2022-02-15 00:54:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.5406976744186047) internal successors, (530), 344 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:17,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 534 transitions. [2022-02-15 00:54:17,680 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 534 transitions. Word has length 122 [2022-02-15 00:54:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:17,681 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 534 transitions. [2022-02-15 00:54:17,681 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 00:54:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 534 transitions. [2022-02-15 00:54:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-15 00:54:17,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:17,682 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:17,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:54:17,683 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:17,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-02-15 00:54:17,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:17,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309077769] [2022-02-15 00:54:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:17,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:54:17,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:17,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309077769] [2022-02-15 00:54:17,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309077769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:17,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:17,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:17,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355451617] [2022-02-15 00:54:17,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:17,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:17,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:17,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:17,794 INFO L87 Difference]: Start difference. First operand 349 states and 534 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:22,441 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 00:54:22,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:22,856 INFO L93 Difference]: Finished difference Result 446 states and 679 transitions. [2022-02-15 00:54:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:22,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-15 00:54:22,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:22,858 INFO L225 Difference]: With dead ends: 446 [2022-02-15 00:54:22,858 INFO L226 Difference]: Without dead ends: 446 [2022-02-15 00:54:22,858 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 00:54:22,859 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 87 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:22,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 513 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 00:54:22,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-02-15 00:54:22,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 388. [2022-02-15 00:54:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 383 states have (on average 1.5456919060052219) internal successors, (592), 383 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 596 transitions. [2022-02-15 00:54:22,864 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 596 transitions. Word has length 123 [2022-02-15 00:54:22,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:22,864 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 596 transitions. [2022-02-15 00:54:22,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 596 transitions. [2022-02-15 00:54:22,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-15 00:54:22,865 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:22,865 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:22,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:54:22,865 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:22,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2124891711, now seen corresponding path program 1 times [2022-02-15 00:54:22,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:22,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370208539] [2022-02-15 00:54:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:22,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:54:23,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:23,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370208539] [2022-02-15 00:54:23,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370208539] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:23,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:23,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:23,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562998407] [2022-02-15 00:54:23,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:23,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:23,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:23,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:23,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:23,007 INFO L87 Difference]: Start difference. First operand 388 states and 596 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:24,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:26,987 WARN L534 Checker$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 00:54:29,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:31,031 WARN L534 Checker$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 00:54:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:31,486 INFO L93 Difference]: Finished difference Result 509 states and 776 transitions. [2022-02-15 00:54:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:31,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-15 00:54:31,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:31,490 INFO L225 Difference]: With dead ends: 509 [2022-02-15 00:54:31,490 INFO L226 Difference]: Without dead ends: 509 [2022-02-15 00:54:31,490 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 00:54:31,490 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:31,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 376 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2022-02-15 00:54:31,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-02-15 00:54:31,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 386. [2022-02-15 00:54:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5459317585301837) internal successors, (589), 381 states have internal predecessors, (589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:31,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 593 transitions. [2022-02-15 00:54:31,495 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 593 transitions. Word has length 123 [2022-02-15 00:54:31,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:31,495 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 593 transitions. [2022-02-15 00:54:31,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 593 transitions. [2022-02-15 00:54:31,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-15 00:54:31,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:31,496 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:31,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:54:31,497 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:31,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:31,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-02-15 00:54:31,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:31,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339189780] [2022-02-15 00:54:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:31,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:54:31,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:31,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339189780] [2022-02-15 00:54:31,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339189780] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:31,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:31,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:31,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994203396] [2022-02-15 00:54:31,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:31,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:31,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:31,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:31,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:31,602 INFO L87 Difference]: Start difference. First operand 386 states and 593 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:33,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:35,598 WARN L534 Checker$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 00:54:37,621 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 00:54:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:39,002 INFO L93 Difference]: Finished difference Result 467 states and 708 transitions. [2022-02-15 00:54:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-15 00:54:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:39,004 INFO L225 Difference]: With dead ends: 467 [2022-02-15 00:54:39,004 INFO L226 Difference]: Without dead ends: 467 [2022-02-15 00:54:39,004 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 00:54:39,004 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:39,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 00:54:39,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-02-15 00:54:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-02-15 00:54:39,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5406824146981628) internal successors, (587), 381 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 591 transitions. [2022-02-15 00:54:39,036 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 591 transitions. Word has length 124 [2022-02-15 00:54:39,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:39,036 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 591 transitions. [2022-02-15 00:54:39,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 591 transitions. [2022-02-15 00:54:39,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 00:54:39,037 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:39,037 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:39,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:54:39,037 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:39,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:39,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-02-15 00:54:39,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:39,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160641355] [2022-02-15 00:54:39,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:39,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:54:39,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:39,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160641355] [2022-02-15 00:54:39,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160641355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:39,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:39,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:39,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453671797] [2022-02-15 00:54:39,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:39,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:39,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:39,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:39,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:39,152 INFO L87 Difference]: Start difference. First operand 386 states and 591 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:41,160 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 00:54:41,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:41,607 INFO L93 Difference]: Finished difference Result 473 states and 719 transitions. [2022-02-15 00:54:41,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:41,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 00:54:41,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:41,609 INFO L225 Difference]: With dead ends: 473 [2022-02-15 00:54:41,609 INFO L226 Difference]: Without dead ends: 473 [2022-02-15 00:54:41,610 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 00:54:41,610 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 68 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:41,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 513 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:54:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-15 00:54:41,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 429. [2022-02-15 00:54:41,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5400943396226414) internal successors, (653), 424 states have internal predecessors, (653), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:41,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 657 transitions. [2022-02-15 00:54:41,615 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 657 transitions. Word has length 131 [2022-02-15 00:54:41,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:41,615 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 657 transitions. [2022-02-15 00:54:41,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 657 transitions. [2022-02-15 00:54:41,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 00:54:41,616 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:41,616 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:41,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:54:41,617 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:41,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 346753369, now seen corresponding path program 1 times [2022-02-15 00:54:41,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:41,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087529399] [2022-02-15 00:54:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:41,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-15 00:54:41,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:41,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087529399] [2022-02-15 00:54:41,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087529399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:41,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:41,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:41,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962817220] [2022-02-15 00:54:41,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:41,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:41,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:41,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:41,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:41,713 INFO L87 Difference]: Start difference. First operand 429 states and 657 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:43,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:45,995 WARN L534 Checker$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 00:54:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:47,054 INFO L93 Difference]: Finished difference Result 475 states and 722 transitions. [2022-02-15 00:54:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:47,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 00:54:47,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:47,056 INFO L225 Difference]: With dead ends: 475 [2022-02-15 00:54:47,056 INFO L226 Difference]: Without dead ends: 475 [2022-02-15 00:54:47,056 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 00:54:47,056 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 35 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:47,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 631 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:54:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-02-15 00:54:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 453. [2022-02-15 00:54:47,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5357142857142858) internal successors, (688), 448 states have internal predecessors, (688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 692 transitions. [2022-02-15 00:54:47,062 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 692 transitions. Word has length 131 [2022-02-15 00:54:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:47,062 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 692 transitions. [2022-02-15 00:54:47,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 692 transitions. [2022-02-15 00:54:47,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-15 00:54:47,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:47,063 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:47,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:54:47,063 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:47,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:47,064 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-02-15 00:54:47,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:47,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088170485] [2022-02-15 00:54:47,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:47,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:47,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:47,155 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:54:47,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:47,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088170485] [2022-02-15 00:54:47,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088170485] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:47,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:47,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:47,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955439185] [2022-02-15 00:54:47,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:47,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:47,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:47,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:47,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:47,157 INFO L87 Difference]: Start difference. First operand 453 states and 692 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:49,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:50,815 WARN L534 Checker$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 00:54:52,832 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 00:54:53,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:53,233 INFO L93 Difference]: Finished difference Result 574 states and 866 transitions. [2022-02-15 00:54:53,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:53,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-15 00:54:53,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:53,235 INFO L225 Difference]: With dead ends: 574 [2022-02-15 00:54:53,235 INFO L226 Difference]: Without dead ends: 574 [2022-02-15 00:54:53,236 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 00:54:53,236 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:53,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 396 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:54:53,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-02-15 00:54:53,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 483. [2022-02-15 00:54:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5271966527196652) internal successors, (730), 478 states have internal predecessors, (730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 734 transitions. [2022-02-15 00:54:53,244 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 734 transitions. Word has length 144 [2022-02-15 00:54:53,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:53,244 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 734 transitions. [2022-02-15 00:54:53,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 734 transitions. [2022-02-15 00:54:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 00:54:53,245 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:53,245 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:53,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:54:53,245 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:53,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-02-15 00:54:53,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:53,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606532935] [2022-02-15 00:54:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:53,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:54:53,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:53,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606532935] [2022-02-15 00:54:53,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606532935] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:53,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:53,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:53,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133136234] [2022-02-15 00:54:53,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:53,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:53,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:53,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:53,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:53,342 INFO L87 Difference]: Start difference. First operand 483 states and 734 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:54,366 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 00:54:56,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:56,911 INFO L93 Difference]: Finished difference Result 525 states and 793 transitions. [2022-02-15 00:54:56,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:56,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 00:54:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:56,913 INFO L225 Difference]: With dead ends: 525 [2022-02-15 00:54:56,913 INFO L226 Difference]: Without dead ends: 525 [2022-02-15 00:54:56,913 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 00:54:56,913 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:56,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 517 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-15 00:54:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-02-15 00:54:56,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 483. [2022-02-15 00:54:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5251046025104602) internal successors, (729), 478 states have internal predecessors, (729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:56,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 733 transitions. [2022-02-15 00:54:56,918 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 733 transitions. Word has length 145 [2022-02-15 00:54:56,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:56,918 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 733 transitions. [2022-02-15 00:54:56,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:56,919 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 733 transitions. [2022-02-15 00:54:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-15 00:54:56,919 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:56,920 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:56,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:54:56,920 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:56,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:56,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1698510247, now seen corresponding path program 1 times [2022-02-15 00:54:56,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:56,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644636039] [2022-02-15 00:54:56,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:56,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:57,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-15 00:54:57,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:57,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644636039] [2022-02-15 00:54:57,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644636039] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:57,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:57,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:57,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938428613] [2022-02-15 00:54:57,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:57,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:57,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:57,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:57,030 INFO L87 Difference]: Start difference. First operand 483 states and 733 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:59,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:02,124 WARN L534 Checker$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 00:55:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:02,556 INFO L93 Difference]: Finished difference Result 554 states and 828 transitions. [2022-02-15 00:55:02,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:02,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-15 00:55:02,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:02,558 INFO L225 Difference]: With dead ends: 554 [2022-02-15 00:55:02,558 INFO L226 Difference]: Without dead ends: 554 [2022-02-15 00:55:02,558 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 00:55:02,559 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:02,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 416 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:55:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-15 00:55:02,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-02-15 00:55:02,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.506276150627615) internal successors, (720), 478 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:02,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 724 transitions. [2022-02-15 00:55:02,564 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 724 transitions. Word has length 147 [2022-02-15 00:55:02,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:02,564 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 724 transitions. [2022-02-15 00:55:02,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:02,564 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 724 transitions. [2022-02-15 00:55:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-15 00:55:02,565 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:02,565 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, 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 00:55:02,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:55:02,565 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:02,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:02,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1339728551, now seen corresponding path program 1 times [2022-02-15 00:55:02,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:02,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828926858] [2022-02-15 00:55:02,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:02,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:02,715 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:55:02,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:02,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828926858] [2022-02-15 00:55:02,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828926858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:02,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:02,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:02,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049681883] [2022-02-15 00:55:02,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:02,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:02,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:02,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:02,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:02,717 INFO L87 Difference]: Start difference. First operand 483 states and 724 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:05,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:05,518 INFO L93 Difference]: Finished difference Result 515 states and 770 transitions. [2022-02-15 00:55:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:05,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-15 00:55:05,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:05,521 INFO L225 Difference]: With dead ends: 515 [2022-02-15 00:55:05,521 INFO L226 Difference]: Without dead ends: 515 [2022-02-15 00:55:05,521 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 00:55:05,521 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 69 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:05,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 531 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 00:55:05,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-02-15 00:55:05,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 483. [2022-02-15 00:55:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.50418410041841) internal successors, (719), 478 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 723 transitions. [2022-02-15 00:55:05,526 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 723 transitions. Word has length 148 [2022-02-15 00:55:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:05,526 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 723 transitions. [2022-02-15 00:55:05,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 723 transitions. [2022-02-15 00:55:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-15 00:55:05,527 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:05,527 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, 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 00:55:05,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:55:05,528 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:05,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:05,528 INFO L85 PathProgramCache]: Analyzing trace with hash -380938011, now seen corresponding path program 1 times [2022-02-15 00:55:05,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:05,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406687606] [2022-02-15 00:55:05,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:05,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:55:05,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:05,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406687606] [2022-02-15 00:55:05,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406687606] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:05,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:05,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:05,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441029703] [2022-02-15 00:55:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:05,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:05,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:05,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:05,624 INFO L87 Difference]: Start difference. First operand 483 states and 723 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:07,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:09,384 WARN L534 Checker$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 00:55:10,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:10,410 INFO L93 Difference]: Finished difference Result 554 states and 820 transitions. [2022-02-15 00:55:10,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:10,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-15 00:55:10,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:10,412 INFO L225 Difference]: With dead ends: 554 [2022-02-15 00:55:10,412 INFO L226 Difference]: Without dead ends: 554 [2022-02-15 00:55:10,412 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 00:55:10,413 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 127 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:10,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 396 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:55:10,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-15 00:55:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-02-15 00:55:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4895397489539748) internal successors, (712), 478 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 716 transitions. [2022-02-15 00:55:10,420 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 716 transitions. Word has length 149 [2022-02-15 00:55:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:10,420 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 716 transitions. [2022-02-15 00:55:10,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 716 transitions. [2022-02-15 00:55:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 00:55:10,421 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:10,421 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:10,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:55:10,421 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:10,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:10,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1930272966, now seen corresponding path program 1 times [2022-02-15 00:55:10,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:10,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125189350] [2022-02-15 00:55:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:10,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-15 00:55:10,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:10,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125189350] [2022-02-15 00:55:10,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125189350] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:10,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:10,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:10,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041836011] [2022-02-15 00:55:10,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:10,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:10,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:10,576 INFO L87 Difference]: Start difference. First operand 483 states and 716 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:12,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:14,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:15,112 INFO L93 Difference]: Finished difference Result 554 states and 813 transitions. [2022-02-15 00:55:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-02-15 00:55:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:15,114 INFO L225 Difference]: With dead ends: 554 [2022-02-15 00:55:15,114 INFO L226 Difference]: Without dead ends: 554 [2022-02-15 00:55:15,114 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 00:55:15,115 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 131 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:15,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 410 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 00:55:15,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-15 00:55:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-02-15 00:55:15,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4748953974895398) internal successors, (705), 478 states have internal predecessors, (705), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:15,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 709 transitions. [2022-02-15 00:55:15,120 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 709 transitions. Word has length 153 [2022-02-15 00:55:15,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:15,120 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 709 transitions. [2022-02-15 00:55:15,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:15,120 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 709 transitions. [2022-02-15 00:55:15,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 00:55:15,121 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:15,121 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:15,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:55:15,121 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:15,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:15,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1871052229, now seen corresponding path program 1 times [2022-02-15 00:55:15,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:15,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620007278] [2022-02-15 00:55:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:15,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-15 00:55:15,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:15,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620007278] [2022-02-15 00:55:15,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620007278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:15,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:15,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:55:15,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059856954] [2022-02-15 00:55:15,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:15,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:55:15,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:15,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:55:15,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:55:15,252 INFO L87 Difference]: Start difference. First operand 483 states and 709 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:16,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:18,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:18,428 INFO L93 Difference]: Finished difference Result 935 states and 1367 transitions. [2022-02-15 00:55:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:55:18,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-02-15 00:55:18,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:18,431 INFO L225 Difference]: With dead ends: 935 [2022-02-15 00:55:18,431 INFO L226 Difference]: Without dead ends: 935 [2022-02-15 00:55:18,431 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 00:55:18,435 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:18,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 00:55:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-02-15 00:55:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2022-02-15 00:55:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.4676724137931034) internal successors, (1362), 928 states have internal predecessors, (1362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1366 transitions. [2022-02-15 00:55:18,460 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1366 transitions. Word has length 153 [2022-02-15 00:55:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:18,461 INFO L470 AbstractCegarLoop]: Abstraction has 933 states and 1366 transitions. [2022-02-15 00:55:18,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1366 transitions. [2022-02-15 00:55:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 00:55:18,462 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:18,462 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:18,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:55:18,462 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:18,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:18,463 INFO L85 PathProgramCache]: Analyzing trace with hash -794498820, now seen corresponding path program 1 times [2022-02-15 00:55:18,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:18,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112642873] [2022-02-15 00:55:18,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:18,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:18,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-15 00:55:18,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:18,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112642873] [2022-02-15 00:55:18,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112642873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:18,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:18,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:55:18,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573119626] [2022-02-15 00:55:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:18,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:55:18,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:18,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:55:18,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:55:18,541 INFO L87 Difference]: Start difference. First operand 933 states and 1366 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:19,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:21,771 WARN L534 Checker$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 00:55:22,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:22,038 INFO L93 Difference]: Finished difference Result 960 states and 1401 transitions. [2022-02-15 00:55:22,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:55:22,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-02-15 00:55:22,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:22,042 INFO L225 Difference]: With dead ends: 960 [2022-02-15 00:55:22,042 INFO L226 Difference]: Without dead ends: 960 [2022-02-15 00:55:22,042 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 00:55:22,043 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:22,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-15 00:55:22,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-02-15 00:55:22,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-02-15 00:55:22,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.46282722513089) internal successors, (1397), 955 states have internal predecessors, (1397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1401 transitions. [2022-02-15 00:55:22,053 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1401 transitions. Word has length 153 [2022-02-15 00:55:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:22,054 INFO L470 AbstractCegarLoop]: Abstraction has 960 states and 1401 transitions. [2022-02-15 00:55:22,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:22,054 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1401 transitions. [2022-02-15 00:55:22,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-15 00:55:22,057 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:22,057 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:22,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:55:22,058 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:22,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1135732029, now seen corresponding path program 1 times [2022-02-15 00:55:22,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:22,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094531956] [2022-02-15 00:55:22,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:22,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:22,217 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-02-15 00:55:22,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:22,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094531956] [2022-02-15 00:55:22,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094531956] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:22,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:22,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:55:22,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175549753] [2022-02-15 00:55:22,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:22,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:55:22,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:22,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:55:22,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:55:22,219 INFO L87 Difference]: Start difference. First operand 960 states and 1401 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:24,227 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 00:55:24,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:24,474 INFO L93 Difference]: Finished difference Result 962 states and 1403 transitions. [2022-02-15 00:55:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:55:24,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-02-15 00:55:24,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:24,477 INFO L225 Difference]: With dead ends: 962 [2022-02-15 00:55:24,477 INFO L226 Difference]: Without dead ends: 962 [2022-02-15 00:55:24,477 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 00:55:24,477 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:24,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 00:55:24,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-02-15 00:55:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-02-15 00:55:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4618599791013585) internal successors, (1399), 957 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1403 transitions. [2022-02-15 00:55:24,486 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1403 transitions. Word has length 153 [2022-02-15 00:55:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:24,486 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1403 transitions. [2022-02-15 00:55:24,486 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 00:55:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1403 transitions. [2022-02-15 00:55:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 00:55:24,487 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:24,488 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:24,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:55:24,488 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:24,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:24,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1936906933, now seen corresponding path program 1 times [2022-02-15 00:55:24,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:24,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911518321] [2022-02-15 00:55:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:24,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-15 00:55:24,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:24,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911518321] [2022-02-15 00:55:24,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911518321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:24,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:24,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:55:24,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317793508] [2022-02-15 00:55:24,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:24,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:55:24,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:24,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:55:24,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:55:24,601 INFO L87 Difference]: Start difference. First operand 962 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:26,929 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 00:55:28,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:31,234 WARN L534 Checker$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 00:55:31,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:31,857 INFO L93 Difference]: Finished difference Result 1493 states and 2171 transitions. [2022-02-15 00:55:31,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 00:55:31,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-15 00:55:31,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:31,861 INFO L225 Difference]: With dead ends: 1493 [2022-02-15 00:55:31,861 INFO L226 Difference]: Without dead ends: 1493 [2022-02-15 00:55:31,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:55:31,861 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 92 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:31,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 835 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 752 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-15 00:55:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-02-15 00:55:31,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1475. [2022-02-15 00:55:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4625850340136055) internal successors, (2150), 1470 states have internal predecessors, (2150), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2154 transitions. [2022-02-15 00:55:31,881 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2154 transitions. Word has length 154 [2022-02-15 00:55:31,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:31,882 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2154 transitions. [2022-02-15 00:55:31,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:31,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2154 transitions. [2022-02-15 00:55:31,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-15 00:55:31,884 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:31,884 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:55:31,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:55:31,885 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:31,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:31,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1933578057, now seen corresponding path program 1 times [2022-02-15 00:55:31,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:31,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766040675] [2022-02-15 00:55:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:31,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-15 00:55:32,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:32,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766040675] [2022-02-15 00:55:32,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766040675] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:32,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:32,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:32,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601464388] [2022-02-15 00:55:32,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:32,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:32,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:32,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:32,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:32,052 INFO L87 Difference]: Start difference. First operand 1475 states and 2154 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:33,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:36,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:36,650 INFO L93 Difference]: Finished difference Result 1604 states and 2310 transitions. [2022-02-15 00:55:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-15 00:55:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:36,654 INFO L225 Difference]: With dead ends: 1604 [2022-02-15 00:55:36,654 INFO L226 Difference]: Without dead ends: 1604 [2022-02-15 00:55:36,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:55:36,656 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 130 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:36,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 406 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 00:55:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-02-15 00:55:36,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1475. [2022-02-15 00:55:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4469387755102041) internal successors, (2127), 1470 states have internal predecessors, (2127), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2131 transitions. [2022-02-15 00:55:36,670 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2131 transitions. Word has length 155 [2022-02-15 00:55:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:36,670 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2131 transitions. [2022-02-15 00:55:36,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2131 transitions. [2022-02-15 00:55:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-15 00:55:36,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:36,672 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:36,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:55:36,673 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:36,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-02-15 00:55:36,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:36,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781590914] [2022-02-15 00:55:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:36,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:36,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:36,762 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-15 00:55:36,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:36,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781590914] [2022-02-15 00:55:36,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781590914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:36,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:36,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:36,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607488313] [2022-02-15 00:55:36,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:36,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:36,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:36,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:36,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:36,763 INFO L87 Difference]: Start difference. First operand 1475 states and 2131 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:38,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:39,882 WARN L534 Checker$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 00:55:41,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:43,930 WARN L534 Checker$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 00:55:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:44,361 INFO L93 Difference]: Finished difference Result 1855 states and 2660 transitions. [2022-02-15 00:55:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:44,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-15 00:55:44,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:44,366 INFO L225 Difference]: With dead ends: 1855 [2022-02-15 00:55:44,366 INFO L226 Difference]: Without dead ends: 1855 [2022-02-15 00:55:44,366 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 00:55:44,366 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 119 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:44,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 406 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-02-15 00:55:44,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2022-02-15 00:55:44,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1615. [2022-02-15 00:55:44,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1610 states have (on average 1.4409937888198758) internal successors, (2320), 1610 states have internal predecessors, (2320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:44,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2324 transitions. [2022-02-15 00:55:44,380 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2324 transitions. Word has length 156 [2022-02-15 00:55:44,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:44,381 INFO L470 AbstractCegarLoop]: Abstraction has 1615 states and 2324 transitions. [2022-02-15 00:55:44,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:44,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2324 transitions. [2022-02-15 00:55:44,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-15 00:55:44,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:44,384 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:44,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:55:44,384 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:44,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:44,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-02-15 00:55:44,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:44,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078654505] [2022-02-15 00:55:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:44,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:44,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-15 00:55:44,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:44,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078654505] [2022-02-15 00:55:44,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078654505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:44,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:44,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:44,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720094703] [2022-02-15 00:55:44,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:44,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:44,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:44,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:44,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:44,495 INFO L87 Difference]: Start difference. First operand 1615 states and 2324 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:45,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:48,613 WARN L534 Checker$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 00:55:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:49,763 INFO L93 Difference]: Finished difference Result 1744 states and 2488 transitions. [2022-02-15 00:55:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:49,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-15 00:55:49,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:49,768 INFO L225 Difference]: With dead ends: 1744 [2022-02-15 00:55:49,768 INFO L226 Difference]: Without dead ends: 1744 [2022-02-15 00:55:49,768 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 00:55:49,768 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 118 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:49,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:55:49,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-02-15 00:55:49,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1613. [2022-02-15 00:55:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1608 states have (on average 1.4322139303482586) internal successors, (2303), 1608 states have internal predecessors, (2303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2307 transitions. [2022-02-15 00:55:49,782 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2307 transitions. Word has length 157 [2022-02-15 00:55:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:49,782 INFO L470 AbstractCegarLoop]: Abstraction has 1613 states and 2307 transitions. [2022-02-15 00:55:49,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2307 transitions. [2022-02-15 00:55:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-02-15 00:55:49,784 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:49,784 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:55:49,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:55:49,784 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:49,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:49,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1924593925, now seen corresponding path program 1 times [2022-02-15 00:55:49,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:49,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871708461] [2022-02-15 00:55:49,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:49,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:49,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-15 00:55:49,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:49,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871708461] [2022-02-15 00:55:49,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871708461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:49,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:49,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:49,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942188933] [2022-02-15 00:55:49,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:49,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:49,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:49,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:49,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:49,884 INFO L87 Difference]: Start difference. First operand 1613 states and 2307 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:51,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:53,684 WARN L534 Checker$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 00:55:55,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:55:56,769 WARN L534 Checker$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 00:55:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:55:57,251 INFO L93 Difference]: Finished difference Result 1987 states and 2809 transitions. [2022-02-15 00:55:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:55:57,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-02-15 00:55:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:55:57,256 INFO L225 Difference]: With dead ends: 1987 [2022-02-15 00:55:57,256 INFO L226 Difference]: Without dead ends: 1987 [2022-02-15 00:55:57,256 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 00:55:57,256 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 127 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:55:57,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 512 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-15 00:55:57,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-02-15 00:55:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1717. [2022-02-15 00:55:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4158878504672898) internal successors, (2424), 1712 states have internal predecessors, (2424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2428 transitions. [2022-02-15 00:55:57,271 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2428 transitions. Word has length 160 [2022-02-15 00:55:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:55:57,272 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2428 transitions. [2022-02-15 00:55:57,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2428 transitions. [2022-02-15 00:55:57,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-02-15 00:55:57,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:55:57,273 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:55:57,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:55:57,274 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:55:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:55:57,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1323780289, now seen corresponding path program 1 times [2022-02-15 00:55:57,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:55:57,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244256780] [2022-02-15 00:55:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:55:57,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:55:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:55:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:55:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-15 00:55:57,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:55:57,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244256780] [2022-02-15 00:55:57,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244256780] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:55:57,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:55:57,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:55:57,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795164876] [2022-02-15 00:55:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:55:57,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:55:57,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:55:57,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:55:57,372 INFO L87 Difference]: Start difference. First operand 1717 states and 2428 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:59,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:01,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:02,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:03,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:03,135 INFO L93 Difference]: Finished difference Result 1846 states and 2580 transitions. [2022-02-15 00:56:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:03,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-02-15 00:56:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:03,140 INFO L225 Difference]: With dead ends: 1846 [2022-02-15 00:56:03,140 INFO L226 Difference]: Without dead ends: 1846 [2022-02-15 00:56:03,140 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 00:56:03,140 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 126 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:03,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:56:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-02-15 00:56:03,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1717. [2022-02-15 00:56:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4001168224299065) internal successors, (2397), 1712 states have internal predecessors, (2397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2401 transitions. [2022-02-15 00:56:03,155 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2401 transitions. Word has length 161 [2022-02-15 00:56:03,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:03,155 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2401 transitions. [2022-02-15 00:56:03,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2401 transitions. [2022-02-15 00:56:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 00:56:03,157 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:03,157 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, 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 00:56:03,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:56:03,158 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:03,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1048598705, now seen corresponding path program 1 times [2022-02-15 00:56:03,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:03,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396552398] [2022-02-15 00:56:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:03,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:03,260 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-15 00:56:03,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:03,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396552398] [2022-02-15 00:56:03,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396552398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:03,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:03,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:56:03,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822928799] [2022-02-15 00:56:03,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:03,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:56:03,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:03,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:56:03,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:56:03,263 INFO L87 Difference]: Start difference. First operand 1717 states and 2401 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:06,128 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 00:56:08,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:10,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:10,429 INFO L93 Difference]: Finished difference Result 1762 states and 2456 transitions. [2022-02-15 00:56:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:10,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-02-15 00:56:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:10,432 INFO L225 Difference]: With dead ends: 1762 [2022-02-15 00:56:10,432 INFO L226 Difference]: Without dead ends: 1762 [2022-02-15 00:56:10,433 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 00:56:10,433 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 37 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:10,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 563 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-02-15 00:56:10,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2022-02-15 00:56:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1717. [2022-02-15 00:56:10,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.3983644859813085) internal successors, (2394), 1712 states have internal predecessors, (2394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2398 transitions. [2022-02-15 00:56:10,446 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2398 transitions. Word has length 164 [2022-02-15 00:56:10,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:10,447 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2398 transitions. [2022-02-15 00:56:10,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2398 transitions. [2022-02-15 00:56:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 00:56:10,452 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:10,452 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, 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 00:56:10,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:56:10,452 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:10,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:10,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1501818664, now seen corresponding path program 1 times [2022-02-15 00:56:10,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:10,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278767261] [2022-02-15 00:56:10,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:10,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-15 00:56:10,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:10,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278767261] [2022-02-15 00:56:10,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278767261] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:10,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:10,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:56:10,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021793149] [2022-02-15 00:56:10,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:10,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:56:10,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:56:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:56:10,542 INFO L87 Difference]: Start difference. First operand 1717 states and 2398 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:11,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:14,392 WARN L534 Checker$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 00:56:16,284 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 00:56:16,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:16,647 INFO L93 Difference]: Finished difference Result 1744 states and 2428 transitions. [2022-02-15 00:56:16,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:16,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-02-15 00:56:16,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:16,650 INFO L225 Difference]: With dead ends: 1744 [2022-02-15 00:56:16,650 INFO L226 Difference]: Without dead ends: 1744 [2022-02-15 00:56:16,650 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 00:56:16,650 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 28 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:16,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 563 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:56:16,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-02-15 00:56:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1706. [2022-02-15 00:56:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3991769547325104) internal successors, (2380), 1701 states have internal predecessors, (2380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:16,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2384 transitions. [2022-02-15 00:56:16,664 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2384 transitions. Word has length 165 [2022-02-15 00:56:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:16,664 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2384 transitions. [2022-02-15 00:56:16,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2384 transitions. [2022-02-15 00:56:16,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-15 00:56:16,666 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:16,666 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, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:16,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:56:16,667 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:16,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:16,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1494416010, now seen corresponding path program 1 times [2022-02-15 00:56:16,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:16,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682200114] [2022-02-15 00:56:16,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:16,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-02-15 00:56:16,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:16,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682200114] [2022-02-15 00:56:16,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682200114] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:16,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:16,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:56:16,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645210119] [2022-02-15 00:56:16,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:16,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:56:16,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:56:16,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:56:16,766 INFO L87 Difference]: Start difference. First operand 1706 states and 2384 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:18,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:20,778 INFO L93 Difference]: Finished difference Result 1740 states and 2422 transitions. [2022-02-15 00:56:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-02-15 00:56:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:20,780 INFO L225 Difference]: With dead ends: 1740 [2022-02-15 00:56:20,780 INFO L226 Difference]: Without dead ends: 1740 [2022-02-15 00:56:20,780 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 00:56:20,781 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 22 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:20,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 600 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:56:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-02-15 00:56:20,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1706. [2022-02-15 00:56:20,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3968253968253967) internal successors, (2376), 1701 states have internal predecessors, (2376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:20,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2380 transitions. [2022-02-15 00:56:20,795 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2380 transitions. Word has length 167 [2022-02-15 00:56:20,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:20,796 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2380 transitions. [2022-02-15 00:56:20,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:20,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2380 transitions. [2022-02-15 00:56:20,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 00:56:20,798 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:20,799 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, 1, 1, 1] [2022-02-15 00:56:20,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:56:20,799 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:20,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:20,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-02-15 00:56:20,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:20,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762842177] [2022-02-15 00:56:20,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:20,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:21,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-15 00:56:21,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:21,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762842177] [2022-02-15 00:56:21,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762842177] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:21,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:21,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:56:21,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861782843] [2022-02-15 00:56:21,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:21,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:56:21,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:21,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:56:21,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:56:21,218 INFO L87 Difference]: Start difference. First operand 1706 states and 2380 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:22,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:24,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:26,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:29,096 WARN L534 Checker$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 00:56:30,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:30,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:30,890 INFO L93 Difference]: Finished difference Result 1714 states and 2390 transitions. [2022-02-15 00:56:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:56:30,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-15 00:56:30,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:30,892 INFO L225 Difference]: With dead ends: 1714 [2022-02-15 00:56:30,892 INFO L226 Difference]: Without dead ends: 1706 [2022-02-15 00:56:30,892 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 00:56:30,892 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:30,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 892 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-02-15 00:56:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-02-15 00:56:30,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2022-02-15 00:56:30,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3962375073486184) internal successors, (2375), 1701 states have internal predecessors, (2375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2379 transitions. [2022-02-15 00:56:30,905 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2379 transitions. Word has length 174 [2022-02-15 00:56:30,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:30,905 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2379 transitions. [2022-02-15 00:56:30,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2379 transitions. [2022-02-15 00:56:30,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 00:56:30,906 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:30,907 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, 1, 1, 1] [2022-02-15 00:56:30,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 00:56:30,907 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:30,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-02-15 00:56:30,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:30,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715283175] [2022-02-15 00:56:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:30,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:56:31,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:31,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715283175] [2022-02-15 00:56:31,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715283175] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:56:31,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940860690] [2022-02-15 00:56:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:31,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:56:31,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:56:31,710 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 00:56:31,721 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 00:56:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:32,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 217 conjunts are in the unsatisfiable core [2022-02-15 00:56:32,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:56:32,874 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 00:56:32,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,932 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 00:56:32,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:32,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,093 INFO L244 Elim1Store]: Index analysis took 108 ms [2022-02-15 00:56:33,096 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 00:56:33,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,144 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 00:56:33,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,258 INFO L353 Elim1Store]: treesize reduction 138, result has 16.9 percent of original size [2022-02-15 00:56:33,258 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 00:56:33,275 INFO L190 IndexEqualityManager]: detected not equals via solver