/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.08.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:01:14,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:01:14,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:01:14,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:01:14,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:01:14,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:01:14,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:01:14,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:01:14,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:01:14,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:01:14,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:01:14,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:01:14,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:01:14,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:01:14,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:01:14,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:01:14,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:01:14,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:01:14,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:01:14,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:01:14,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:01:14,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:01:14,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:01:14,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:01:14,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 20:01:14,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 20:01:14,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 20:01:14,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 20:01:14,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 20:01:14,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 20:01:14,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 20:01:14,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 20:01:14,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 20:01:14,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 20:01:14,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 20:01:14,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 20:01:14,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 20:01:14,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 20:01:14,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:01:14,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:01:14,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:01:14,630 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 20:01:14,637 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:01:14,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:01:14,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:01:14,639 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 20:01:14,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:01:14,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 20:01:14,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:01:14,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:01:14,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:01:14,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:01:14,640 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 20:01:14,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:01:14,640 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:01:14,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:01:14,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:01:14,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:01:14,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 20:01:14,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:01:14,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:01:14,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:01:14,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:01:14,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:01:14,642 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:01:14,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:01:14,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:01:14,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:01:14,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:01:14,869 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:01:14,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-02-23 20:01:14,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7e3cafc/3678456c824741e383d91964962a0927/FLAG497093629 [2022-02-23 20:01:15,326 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:01:15,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-02-23 20:01:15,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7e3cafc/3678456c824741e383d91964962a0927/FLAG497093629 [2022-02-23 20:01:15,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7e3cafc/3678456c824741e383d91964962a0927 [2022-02-23 20:01:15,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:01:15,680 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:01:15,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:01:15,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:01:15,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:01:15,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:01:15" (1/1) ... [2022-02-23 20:01:15,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300fdfcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:15, skipping insertion in model container [2022-02-23 20:01:15,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:01:15" (1/1) ... [2022-02-23 20:01:15,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:01:15,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:01:16,161 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.08.i.cil-2.c[74416,74429] [2022-02-23 20:01:16,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:01:16,176 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:01:16,287 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.08.i.cil-2.c[74416,74429] [2022-02-23 20:01:16,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:01:16,309 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:01:16,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16 WrapperNode [2022-02-23 20:01:16,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:01:16,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:01:16,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:01:16,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:01:16,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:01:16,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:01:16,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:01:16,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:01:16,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (1/1) ... [2022-02-23 20:01:16,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:01:16,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:01:16,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 20:01:16,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 20:01:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:01:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:01:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:01:16,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-23 20:01:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-23 20:01:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:01:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 20:01:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 20:01:16,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 20:01:16,489 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 20:01:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:01:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:01:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:01:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:01:16,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 20:01:16,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 20:01:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:01:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 20:01:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 20:01:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 20:01:16,491 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:01:16,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:01:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:01:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 20:01:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 20:01:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 20:01:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 20:01:16,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:01:16,658 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:01:16,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:01:17,396 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 20:01:17,731 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-23 20:01:17,732 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-23 20:01:17,741 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:01:17,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:01:17,747 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 20:01:17,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:01:17 BoogieIcfgContainer [2022-02-23 20:01:17,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:01:17,749 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:01:17,749 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:01:17,750 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:01:17,752 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:01:17" (1/1) ... [2022-02-23 20:01:17,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:01:17 BasicIcfg [2022-02-23 20:01:17,792 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:01:17,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:01:17,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:01:17,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:01:17,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:01:15" (1/4) ... [2022-02-23 20:01:17,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32818ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:01:17, skipping insertion in model container [2022-02-23 20:01:17,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:01:16" (2/4) ... [2022-02-23 20:01:17,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32818ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:01:17, skipping insertion in model container [2022-02-23 20:01:17,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:01:17" (3/4) ... [2022-02-23 20:01:17,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32818ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:01:17, skipping insertion in model container [2022-02-23 20:01:17,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:01:17" (4/4) ... [2022-02-23 20:01:17,798 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-2.cJordan [2022-02-23 20:01:17,801 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:01:17,801 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:01:17,829 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:01:17,835 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 20:01:17,835 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:01:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 20:01:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-23 20:01:17,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:17,870 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] [2022-02-23 20:01:17,870 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:17,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1558892099, now seen corresponding path program 1 times [2022-02-23 20:01:17,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:17,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215444157] [2022-02-23 20:01:17,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:17,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:18,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:18,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:18,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215444157] [2022-02-23 20:01:18,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215444157] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:18,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:18,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:18,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787864073] [2022-02-23 20:01:18,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:18,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:18,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:18,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:18,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:18,449 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 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) [2022-02-23 20:01:21,784 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 [] [2022-02-23 20:01:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:22,432 INFO L93 Difference]: Finished difference Result 286 states and 475 transitions. [2022-02-23 20:01:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:22,435 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 [2022-02-23 20:01:22,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:22,443 INFO L225 Difference]: With dead ends: 286 [2022-02-23 20:01:22,443 INFO L226 Difference]: Without dead ends: 260 [2022-02-23 20:01:22,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:22,446 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 152 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:22,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 463 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-23 20:01:22,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-02-23 20:01:22,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 182. [2022-02-23 20:01:22,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.6045197740112995) internal successors, (284), 177 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:22,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-02-23 20:01:22,479 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 49 [2022-02-23 20:01:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:22,480 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-02-23 20:01:22,480 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) [2022-02-23 20:01:22,480 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-02-23 20:01:22,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 20:01:22,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:22,481 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] [2022-02-23 20:01:22,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:01:22,482 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:22,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:22,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1110443281, now seen corresponding path program 1 times [2022-02-23 20:01:22,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:22,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882073366] [2022-02-23 20:01:22,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:22,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:22,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:22,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:22,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882073366] [2022-02-23 20:01:22,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882073366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:22,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:22,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:22,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601932430] [2022-02-23 20:01:22,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:22,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:22,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:22,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:22,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:22,620 INFO L87 Difference]: Start difference. First operand 182 states and 288 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) [2022-02-23 20:01:26,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:27,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:27,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:27,748 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-02-23 20:01:27,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:27,748 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 [2022-02-23 20:01:27,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:27,750 INFO L225 Difference]: With dead ends: 210 [2022-02-23 20:01:27,750 INFO L226 Difference]: Without dead ends: 210 [2022-02-23 20:01:27,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:27,751 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:27,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-23 20:01:27,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-23 20:01:27,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-02-23 20:01:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 188 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-02-23 20:01:27,765 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 50 [2022-02-23 20:01:27,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:27,765 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-02-23 20:01:27,765 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) [2022-02-23 20:01:27,765 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-02-23 20:01:27,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-23 20:01:27,766 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:27,767 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] [2022-02-23 20:01:27,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 20:01:27,771 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1078266722, now seen corresponding path program 1 times [2022-02-23 20:01:27,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:27,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061502474] [2022-02-23 20:01:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:27,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:27,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:27,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061502474] [2022-02-23 20:01:27,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061502474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:27,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:27,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:27,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561277872] [2022-02-23 20:01:27,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:27,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:27,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:27,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:27,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:27,950 INFO L87 Difference]: Start difference. First operand 193 states and 307 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) [2022-02-23 20:01:29,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:30,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:32,959 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-02-23 20:01:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:32,959 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 [2022-02-23 20:01:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:32,960 INFO L225 Difference]: With dead ends: 210 [2022-02-23 20:01:32,960 INFO L226 Difference]: Without dead ends: 210 [2022-02-23 20:01:32,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:32,963 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:32,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-23 20:01:32,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-23 20:01:32,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-02-23 20:01:32,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6063829787234043) internal successors, (302), 188 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-02-23 20:01:32,971 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 63 [2022-02-23 20:01:32,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:32,971 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-02-23 20:01:32,971 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) [2022-02-23 20:01:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-02-23 20:01:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:01:32,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:32,973 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] [2022-02-23 20:01:32,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 20:01:32,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1195451989, now seen corresponding path program 1 times [2022-02-23 20:01:32,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:32,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552488917] [2022-02-23 20:01:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:33,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:33,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552488917] [2022-02-23 20:01:33,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552488917] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:33,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:33,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:33,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306497424] [2022-02-23 20:01:33,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:33,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:33,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:33,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:33,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:33,127 INFO L87 Difference]: Start difference. First operand 193 states and 306 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) [2022-02-23 20:01:34,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:36,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:38,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:39,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:39,752 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2022-02-23 20:01:39,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:39,753 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 [2022-02-23 20:01:39,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:39,754 INFO L225 Difference]: With dead ends: 209 [2022-02-23 20:01:39,754 INFO L226 Difference]: Without dead ends: 209 [2022-02-23 20:01:39,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:39,755 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:39,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-23 20:01:39,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-02-23 20:01:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 193. [2022-02-23 20:01:39,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.601063829787234) internal successors, (301), 188 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-02-23 20:01:39,762 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 64 [2022-02-23 20:01:39,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:39,762 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-02-23 20:01:39,762 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) [2022-02-23 20:01:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-02-23 20:01:39,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:01:39,764 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:39,764 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] [2022-02-23 20:01:39,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 20:01:39,765 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:39,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:39,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1745068491, now seen corresponding path program 1 times [2022-02-23 20:01:39,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:39,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253198406] [2022-02-23 20:01:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:39,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:39,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:39,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253198406] [2022-02-23 20:01:39,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253198406] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:39,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:39,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:39,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582111189] [2022-02-23 20:01:39,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:39,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:39,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:39,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:39,898 INFO L87 Difference]: Start difference. First operand 193 states and 305 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) [2022-02-23 20:01:41,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:43,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:45,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:46,630 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 [] [2022-02-23 20:01:47,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:47,126 INFO L93 Difference]: Finished difference Result 310 states and 484 transitions. [2022-02-23 20:01:47,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:47,126 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 [2022-02-23 20:01:47,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:47,127 INFO L225 Difference]: With dead ends: 310 [2022-02-23 20:01:47,128 INFO L226 Difference]: Without dead ends: 310 [2022-02-23 20:01:47,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:47,128 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 147 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:47,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-23 20:01:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-02-23 20:01:47,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 205. [2022-02-23 20:01:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.585) internal successors, (317), 200 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:47,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 321 transitions. [2022-02-23 20:01:47,136 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 321 transitions. Word has length 64 [2022-02-23 20:01:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:47,136 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 321 transitions. [2022-02-23 20:01:47,136 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) [2022-02-23 20:01:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 321 transitions. [2022-02-23 20:01:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:01:47,138 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:47,138 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] [2022-02-23 20:01:47,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 20:01:47,138 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash 687906315, now seen corresponding path program 1 times [2022-02-23 20:01:47,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:47,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791916332] [2022-02-23 20:01:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:47,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:47,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791916332] [2022-02-23 20:01:47,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791916332] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:47,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:47,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:47,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288167461] [2022-02-23 20:01:47,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:47,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:47,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:47,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:47,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:47,246 INFO L87 Difference]: Start difference. First operand 205 states and 321 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) [2022-02-23 20:01:49,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:51,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:53,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:54,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:54,106 INFO L93 Difference]: Finished difference Result 219 states and 338 transitions. [2022-02-23 20:01:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:54,107 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 [2022-02-23 20:01:54,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:54,108 INFO L225 Difference]: With dead ends: 219 [2022-02-23 20:01:54,108 INFO L226 Difference]: Without dead ends: 219 [2022-02-23 20:01:54,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:54,109 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:54,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-02-23 20:01:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-02-23 20:01:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 205. [2022-02-23 20:01:54,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.58) internal successors, (316), 200 states have internal predecessors, (316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 320 transitions. [2022-02-23 20:01:54,115 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 320 transitions. Word has length 64 [2022-02-23 20:01:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:54,115 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 320 transitions. [2022-02-23 20:01:54,123 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) [2022-02-23 20:01:54,123 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 320 transitions. [2022-02-23 20:01:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:01:54,124 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:54,124 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] [2022-02-23 20:01:54,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 20:01:54,125 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:54,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:54,125 INFO L85 PathProgramCache]: Analyzing trace with hash -621355733, now seen corresponding path program 1 times [2022-02-23 20:01:54,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:54,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370475961] [2022-02-23 20:01:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:54,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:54,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:54,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370475961] [2022-02-23 20:01:54,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370475961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:54,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:54,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:54,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553179073] [2022-02-23 20:01:54,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:54,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:54,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:54,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:54,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:54,261 INFO L87 Difference]: Start difference. First operand 205 states and 320 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) [2022-02-23 20:01:56,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:58,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:01:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:01:58,836 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-02-23 20:01:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:01:58,838 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 [2022-02-23 20:01:58,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:01:58,839 INFO L225 Difference]: With dead ends: 309 [2022-02-23 20:01:58,839 INFO L226 Difference]: Without dead ends: 309 [2022-02-23 20:01:58,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:01:58,840 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 140 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:01:58,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:01:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-23 20:01:58,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-02-23 20:01:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5776699029126213) internal successors, (325), 206 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:01:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 329 transitions. [2022-02-23 20:01:58,845 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 329 transitions. Word has length 64 [2022-02-23 20:01:58,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:01:58,845 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 329 transitions. [2022-02-23 20:01:58,846 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) [2022-02-23 20:01:58,846 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 329 transitions. [2022-02-23 20:01:58,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:01:58,847 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:01:58,847 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] [2022-02-23 20:01:58,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 20:01:58,847 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:01:58,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:01:58,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1526798082, now seen corresponding path program 1 times [2022-02-23 20:01:58,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:01:58,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144726542] [2022-02-23 20:01:58,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:01:58,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:01:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:01:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:01:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:01:58,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:01:58,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144726542] [2022-02-23 20:01:58,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144726542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:01:58,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:01:58,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:01:58,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042396712] [2022-02-23 20:01:58,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:01:58,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:01:58,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:01:58,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:01:58,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:01:58,949 INFO L87 Difference]: Start difference. First operand 211 states and 329 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) [2022-02-23 20:02:00,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:02,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:04,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:05,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:05,024 INFO L93 Difference]: Finished difference Result 224 states and 345 transitions. [2022-02-23 20:02:05,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:05,025 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 [2022-02-23 20:02:05,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:05,026 INFO L225 Difference]: With dead ends: 224 [2022-02-23 20:02:05,026 INFO L226 Difference]: Without dead ends: 224 [2022-02-23 20:02:05,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:05,026 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:05,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-23 20:02:05,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-02-23 20:02:05,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 211. [2022-02-23 20:02:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5728155339805825) internal successors, (324), 206 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 328 transitions. [2022-02-23 20:02:05,032 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 328 transitions. Word has length 65 [2022-02-23 20:02:05,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:05,034 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 328 transitions. [2022-02-23 20:02:05,034 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) [2022-02-23 20:02:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 328 transitions. [2022-02-23 20:02:05,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 20:02:05,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:05,036 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] [2022-02-23 20:02:05,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 20:02:05,036 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:05,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:05,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1650794065, now seen corresponding path program 1 times [2022-02-23 20:02:05,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:05,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972604902] [2022-02-23 20:02:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:05,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:05,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:02:05,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:05,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972604902] [2022-02-23 20:02:05,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972604902] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:05,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:05,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:05,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761353685] [2022-02-23 20:02:05,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:05,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:05,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:05,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:05,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:05,147 INFO L87 Difference]: Start difference. First operand 211 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:07,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:07,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:07,651 INFO L93 Difference]: Finished difference Result 309 states and 475 transitions. [2022-02-23 20:02:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:07,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-23 20:02:07,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:07,653 INFO L225 Difference]: With dead ends: 309 [2022-02-23 20:02:07,653 INFO L226 Difference]: Without dead ends: 309 [2022-02-23 20:02:07,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:07,654 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 143 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:07,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 346 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 20:02:07,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-23 20:02:07,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-02-23 20:02:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.558252427184466) internal successors, (321), 206 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 325 transitions. [2022-02-23 20:02:07,664 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 325 transitions. Word has length 66 [2022-02-23 20:02:07,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:07,664 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 325 transitions. [2022-02-23 20:02:07,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:07,664 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 325 transitions. [2022-02-23 20:02:07,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:02:07,665 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:07,665 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] [2022-02-23 20:02:07,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 20:02:07,665 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:07,666 INFO L85 PathProgramCache]: Analyzing trace with hash 245948261, now seen corresponding path program 1 times [2022-02-23 20:02:07,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:07,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717303638] [2022-02-23 20:02:07,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:07,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:02:07,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:07,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717303638] [2022-02-23 20:02:07,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717303638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:07,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:07,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:07,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458226487] [2022-02-23 20:02:07,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:07,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:07,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:07,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:07,780 INFO L87 Difference]: Start difference. First operand 211 states and 325 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:09,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:10,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:11,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:11,194 INFO L93 Difference]: Finished difference Result 309 states and 472 transitions. [2022-02-23 20:02:11,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:11,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-23 20:02:11,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:11,196 INFO L225 Difference]: With dead ends: 309 [2022-02-23 20:02:11,196 INFO L226 Difference]: Without dead ends: 309 [2022-02-23 20:02:11,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:11,196 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:11,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-23 20:02:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-23 20:02:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-02-23 20:02:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5436893203883495) internal successors, (318), 206 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 322 transitions. [2022-02-23 20:02:11,201 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 322 transitions. Word has length 67 [2022-02-23 20:02:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:11,201 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 322 transitions. [2022-02-23 20:02:11,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 322 transitions. [2022-02-23 20:02:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:02:11,202 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:11,202 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] [2022-02-23 20:02:11,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 20:02:11,202 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:11,202 INFO L85 PathProgramCache]: Analyzing trace with hash -96502252, now seen corresponding path program 1 times [2022-02-23 20:02:11,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:11,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230159257] [2022-02-23 20:02:11,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:11,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:02:11,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:11,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230159257] [2022-02-23 20:02:11,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230159257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:11,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:11,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:11,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952326313] [2022-02-23 20:02:11,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:11,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:11,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:11,297 INFO L87 Difference]: Start difference. First operand 211 states and 322 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:12,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:15,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:17,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:17,898 INFO L93 Difference]: Finished difference Result 253 states and 382 transitions. [2022-02-23 20:02:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:17,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-23 20:02:17,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:17,900 INFO L225 Difference]: With dead ends: 253 [2022-02-23 20:02:17,900 INFO L226 Difference]: Without dead ends: 253 [2022-02-23 20:02:17,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:17,901 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 30 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:17,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-23 20:02:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-02-23 20:02:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 233. [2022-02-23 20:02:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.543859649122807) internal successors, (352), 228 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 356 transitions. [2022-02-23 20:02:17,906 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 356 transitions. Word has length 67 [2022-02-23 20:02:17,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:17,906 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 356 transitions. [2022-02-23 20:02:17,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:17,906 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 356 transitions. [2022-02-23 20:02:17,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-02-23 20:02:17,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:17,907 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:02:17,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 20:02:17,907 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:17,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:17,908 INFO L85 PathProgramCache]: Analyzing trace with hash -763654337, now seen corresponding path program 1 times [2022-02-23 20:02:17,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:17,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760538120] [2022-02-23 20:02:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:02:18,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:18,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760538120] [2022-02-23 20:02:18,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760538120] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:18,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:18,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:18,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892069741] [2022-02-23 20:02:18,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:18,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:18,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:18,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:18,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:18,015 INFO L87 Difference]: Start difference. First operand 233 states and 356 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:19,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:21,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:23,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:24,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:25,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:25,085 INFO L93 Difference]: Finished difference Result 370 states and 571 transitions. [2022-02-23 20:02:25,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:25,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-02-23 20:02:25,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:25,088 INFO L225 Difference]: With dead ends: 370 [2022-02-23 20:02:25,088 INFO L226 Difference]: Without dead ends: 370 [2022-02-23 20:02:25,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:25,089 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 140 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:25,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 578 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-02-23 20:02:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-02-23 20:02:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 249. [2022-02-23 20:02:25,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.528688524590164) internal successors, (373), 244 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2022-02-23 20:02:25,094 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 80 [2022-02-23 20:02:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:25,095 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2022-02-23 20:02:25,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2022-02-23 20:02:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-23 20:02:25,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:25,096 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:02:25,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 20:02:25,096 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:25,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1834537326, now seen corresponding path program 1 times [2022-02-23 20:02:25,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:25,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324164619] [2022-02-23 20:02:25,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:25,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-23 20:02:25,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:25,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324164619] [2022-02-23 20:02:25,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324164619] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:25,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:25,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:25,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754850383] [2022-02-23 20:02:25,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:25,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:25,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:25,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:25,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:25,203 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:27,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:28,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:30,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:30,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:30,561 INFO L93 Difference]: Finished difference Result 262 states and 392 transitions. [2022-02-23 20:02:30,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:30,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 81 [2022-02-23 20:02:30,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:30,562 INFO L225 Difference]: With dead ends: 262 [2022-02-23 20:02:30,562 INFO L226 Difference]: Without dead ends: 262 [2022-02-23 20:02:30,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:30,563 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 19 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:30,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 572 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-23 20:02:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-02-23 20:02:30,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 249. [2022-02-23 20:02:30,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.5245901639344261) internal successors, (372), 244 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:30,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 376 transitions. [2022-02-23 20:02:30,567 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 376 transitions. Word has length 81 [2022-02-23 20:02:30,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:30,567 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 376 transitions. [2022-02-23 20:02:30,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 376 transitions. [2022-02-23 20:02:30,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-23 20:02:30,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:30,569 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:02:30,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 20:02:30,569 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:30,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash -577071666, now seen corresponding path program 1 times [2022-02-23 20:02:30,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:30,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644688475] [2022-02-23 20:02:30,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:30,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:02:30,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:30,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644688475] [2022-02-23 20:02:30,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644688475] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:30,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:30,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:30,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053634045] [2022-02-23 20:02:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:30,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:30,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:30,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:30,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:30,668 INFO L87 Difference]: Start difference. First operand 249 states and 376 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:32,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:34,545 INFO L93 Difference]: Finished difference Result 347 states and 523 transitions. [2022-02-23 20:02:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:34,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-02-23 20:02:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:34,547 INFO L225 Difference]: With dead ends: 347 [2022-02-23 20:02:34,547 INFO L226 Difference]: Without dead ends: 347 [2022-02-23 20:02:34,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:34,548 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:34,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-23 20:02:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-02-23 20:02:34,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 249. [2022-02-23 20:02:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.5122950819672132) internal successors, (369), 244 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:34,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 373 transitions. [2022-02-23 20:02:34,552 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 373 transitions. Word has length 81 [2022-02-23 20:02:34,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:34,553 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 373 transitions. [2022-02-23 20:02:34,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 373 transitions. [2022-02-23 20:02:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-23 20:02:34,553 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:34,553 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:02:34,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 20:02:34,554 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1618514662, now seen corresponding path program 1 times [2022-02-23 20:02:34,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:34,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662476671] [2022-02-23 20:02:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:34,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-23 20:02:34,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:34,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662476671] [2022-02-23 20:02:34,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662476671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:34,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:34,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:02:34,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035879186] [2022-02-23 20:02:34,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:34,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:02:34,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:34,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:02:34,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:34,657 INFO L87 Difference]: Start difference. First operand 249 states and 373 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:35,881 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 [] [2022-02-23 20:02:36,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:38,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:40,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:41,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:41,196 INFO L93 Difference]: Finished difference Result 258 states and 384 transitions. [2022-02-23 20:02:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 20:02:41,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-02-23 20:02:41,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:41,201 INFO L225 Difference]: With dead ends: 258 [2022-02-23 20:02:41,201 INFO L226 Difference]: Without dead ends: 258 [2022-02-23 20:02:41,201 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 [2022-02-23 20:02:41,201 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:41,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-02-23 20:02:41,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-02-23 20:02:41,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-02-23 20:02:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5019762845849802) internal successors, (380), 253 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:41,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 384 transitions. [2022-02-23 20:02:41,225 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 384 transitions. Word has length 82 [2022-02-23 20:02:41,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:41,225 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 384 transitions. [2022-02-23 20:02:41,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:41,225 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 384 transitions. [2022-02-23 20:02:41,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-23 20:02:41,226 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:41,226 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:02:41,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 20:02:41,226 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1558375689, now seen corresponding path program 1 times [2022-02-23 20:02:41,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:41,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878786901] [2022-02-23 20:02:41,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:41,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:02:41,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:41,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878786901] [2022-02-23 20:02:41,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878786901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:41,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:41,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:41,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475373856] [2022-02-23 20:02:41,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:41,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:41,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:41,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:41,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:41,326 INFO L87 Difference]: Start difference. First operand 258 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:42,355 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 [] [2022-02-23 20:02:45,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:47,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:47,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:47,647 INFO L93 Difference]: Finished difference Result 355 states and 528 transitions. [2022-02-23 20:02:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:47,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-23 20:02:47,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:47,648 INFO L225 Difference]: With dead ends: 355 [2022-02-23 20:02:47,648 INFO L226 Difference]: Without dead ends: 355 [2022-02-23 20:02:47,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:47,649 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 141 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:47,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 348 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-23 20:02:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-02-23 20:02:47,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 258. [2022-02-23 20:02:47,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4861660079051384) internal successors, (376), 253 states have internal predecessors, (376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:47,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 380 transitions. [2022-02-23 20:02:47,653 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 380 transitions. Word has length 83 [2022-02-23 20:02:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:47,653 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 380 transitions. [2022-02-23 20:02:47,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:47,654 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 380 transitions. [2022-02-23 20:02:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-23 20:02:47,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:47,654 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:02:47,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 20:02:47,655 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:47,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:47,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1133478069, now seen corresponding path program 1 times [2022-02-23 20:02:47,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:47,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557906714] [2022-02-23 20:02:47,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:47,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:02:47,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:47,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557906714] [2022-02-23 20:02:47,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557906714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:47,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:47,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:47,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336447147] [2022-02-23 20:02:47,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:47,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:47,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:47,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:47,753 INFO L87 Difference]: Start difference. First operand 258 states and 380 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:48,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:50,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:51,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:53,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:53,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:02:53,872 INFO L93 Difference]: Finished difference Result 354 states and 522 transitions. [2022-02-23 20:02:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:02:53,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 89 [2022-02-23 20:02:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:02:53,888 INFO L225 Difference]: With dead ends: 354 [2022-02-23 20:02:53,888 INFO L226 Difference]: Without dead ends: 354 [2022-02-23 20:02:53,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:02:53,889 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 78 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:02:53,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 495 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-23 20:02:53,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-02-23 20:02:53,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 300. [2022-02-23 20:02:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.505084745762712) internal successors, (444), 295 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 448 transitions. [2022-02-23 20:02:53,893 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 448 transitions. Word has length 89 [2022-02-23 20:02:53,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:02:53,894 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 448 transitions. [2022-02-23 20:02:53,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 448 transitions. [2022-02-23 20:02:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-23 20:02:53,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:02:53,894 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:02:53,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 20:02:53,895 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:02:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:02:53,895 INFO L85 PathProgramCache]: Analyzing trace with hash -802182218, now seen corresponding path program 1 times [2022-02-23 20:02:53,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:02:53,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575580181] [2022-02-23 20:02:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:02:53,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:02:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:02:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:02:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:02:53,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:02:53,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575580181] [2022-02-23 20:02:53,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575580181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:02:53,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:02:53,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:02:53,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663742440] [2022-02-23 20:02:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:02:53,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:02:53,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:02:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:02:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:02:53,990 INFO L87 Difference]: Start difference. First operand 300 states and 448 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:02:55,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:57,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:02:59,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:01,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:01,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:01,441 INFO L93 Difference]: Finished difference Result 397 states and 595 transitions. [2022-02-23 20:03:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:01,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 89 [2022-02-23 20:03:01,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:01,443 INFO L225 Difference]: With dead ends: 397 [2022-02-23 20:03:01,443 INFO L226 Difference]: Without dead ends: 397 [2022-02-23 20:03:01,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:01,444 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 113 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:01,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 366 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-02-23 20:03:01,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-02-23 20:03:01,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 280. [2022-02-23 20:03:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5236363636363637) internal successors, (419), 275 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 423 transitions. [2022-02-23 20:03:01,448 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 423 transitions. Word has length 89 [2022-02-23 20:03:01,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:01,448 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 423 transitions. [2022-02-23 20:03:01,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 423 transitions. [2022-02-23 20:03:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-23 20:03:01,449 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:01,449 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] [2022-02-23 20:03:01,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 20:03:01,449 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:01,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:01,449 INFO L85 PathProgramCache]: Analyzing trace with hash -442897010, now seen corresponding path program 1 times [2022-02-23 20:03:01,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:01,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044743926] [2022-02-23 20:03:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:01,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:03:01,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:01,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044743926] [2022-02-23 20:03:01,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044743926] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:01,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:01,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:01,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122232230] [2022-02-23 20:03:01,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:01,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:01,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:01,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:01,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:01,548 INFO L87 Difference]: Start difference. First operand 280 states and 423 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) [2022-02-23 20:03:04,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:06,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:06,722 INFO L93 Difference]: Finished difference Result 373 states and 560 transitions. [2022-02-23 20:03:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:06,723 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 [2022-02-23 20:03:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:06,724 INFO L225 Difference]: With dead ends: 373 [2022-02-23 20:03:06,724 INFO L226 Difference]: Without dead ends: 373 [2022-02-23 20:03:06,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:06,724 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 84 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:06,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 501 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-23 20:03:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-02-23 20:03:06,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 314. [2022-02-23 20:03:06,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5275080906148868) internal successors, (472), 309 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 476 transitions. [2022-02-23 20:03:06,729 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 476 transitions. Word has length 117 [2022-02-23 20:03:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:06,729 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 476 transitions. [2022-02-23 20:03:06,729 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) [2022-02-23 20:03:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 476 transitions. [2022-02-23 20:03:06,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-23 20:03:06,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:06,730 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] [2022-02-23 20:03:06,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 20:03:06,730 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:06,731 INFO L85 PathProgramCache]: Analyzing trace with hash -689210097, now seen corresponding path program 1 times [2022-02-23 20:03:06,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:06,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328671203] [2022-02-23 20:03:06,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:06,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-23 20:03:06,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:06,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328671203] [2022-02-23 20:03:06,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328671203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:06,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:06,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:06,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687626718] [2022-02-23 20:03:06,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:06,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:06,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:06,826 INFO L87 Difference]: Start difference. First operand 314 states and 476 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:08,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:10,155 INFO L93 Difference]: Finished difference Result 359 states and 538 transitions. [2022-02-23 20:03:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:10,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-02-23 20:03:10,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:10,156 INFO L225 Difference]: With dead ends: 359 [2022-02-23 20:03:10,156 INFO L226 Difference]: Without dead ends: 359 [2022-02-23 20:03:10,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:10,157 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 32 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:10,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 595 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-23 20:03:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-02-23 20:03:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 338. [2022-02-23 20:03:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5225225225225225) internal successors, (507), 333 states have internal predecessors, (507), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 511 transitions. [2022-02-23 20:03:10,161 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 511 transitions. Word has length 117 [2022-02-23 20:03:10,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:10,162 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 511 transitions. [2022-02-23 20:03:10,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:10,162 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 511 transitions. [2022-02-23 20:03:10,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-23 20:03:10,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:10,164 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] [2022-02-23 20:03:10,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 20:03:10,164 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:10,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1156244222, now seen corresponding path program 1 times [2022-02-23 20:03:10,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:10,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383414196] [2022-02-23 20:03:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:10,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:10,255 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-23 20:03:10,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:10,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383414196] [2022-02-23 20:03:10,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383414196] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:10,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:10,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:10,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40500044] [2022-02-23 20:03:10,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:10,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:10,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:10,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:10,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:10,257 INFO L87 Difference]: Start difference. First operand 338 states and 511 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) [2022-02-23 20:03:12,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:14,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:14,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:14,880 INFO L93 Difference]: Finished difference Result 345 states and 520 transitions. [2022-02-23 20:03:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:14,880 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 [2022-02-23 20:03:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:14,882 INFO L225 Difference]: With dead ends: 345 [2022-02-23 20:03:14,882 INFO L226 Difference]: Without dead ends: 345 [2022-02-23 20:03:14,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:14,882 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 30 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:14,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 525 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:03:14,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-02-23 20:03:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 338. [2022-02-23 20:03:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5195195195195195) internal successors, (506), 333 states have internal predecessors, (506), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 510 transitions. [2022-02-23 20:03:14,887 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 510 transitions. Word has length 122 [2022-02-23 20:03:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:14,887 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 510 transitions. [2022-02-23 20:03:14,887 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) [2022-02-23 20:03:14,887 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 510 transitions. [2022-02-23 20:03:14,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-23 20:03:14,888 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:14,888 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] [2022-02-23 20:03:14,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 20:03:14,888 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:14,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:14,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1770598714, now seen corresponding path program 1 times [2022-02-23 20:03:14,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:14,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944713955] [2022-02-23 20:03:14,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:14,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:14,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:03:14,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:14,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944713955] [2022-02-23 20:03:14,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944713955] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:14,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:14,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:14,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838993384] [2022-02-23 20:03:14,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:14,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:14,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:14,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:14,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:14,999 INFO L87 Difference]: Start difference. First operand 338 states and 510 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) [2022-02-23 20:03:18,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:19,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:19,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:19,986 INFO L93 Difference]: Finished difference Result 453 states and 678 transitions. [2022-02-23 20:03:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:19,987 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 122 [2022-02-23 20:03:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:19,988 INFO L225 Difference]: With dead ends: 453 [2022-02-23 20:03:19,988 INFO L226 Difference]: Without dead ends: 453 [2022-02-23 20:03:19,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:19,989 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:19,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-23 20:03:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-02-23 20:03:19,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 375. [2022-02-23 20:03:19,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.5297297297297296) internal successors, (566), 370 states have internal predecessors, (566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 570 transitions. [2022-02-23 20:03:19,994 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 570 transitions. Word has length 122 [2022-02-23 20:03:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:19,994 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 570 transitions. [2022-02-23 20:03:19,994 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) [2022-02-23 20:03:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 570 transitions. [2022-02-23 20:03:19,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-23 20:03:19,995 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:19,995 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] [2022-02-23 20:03:19,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 20:03:19,995 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:19,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1281634973, now seen corresponding path program 1 times [2022-02-23 20:03:19,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:19,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225937281] [2022-02-23 20:03:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:19,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:20,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:03:20,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:20,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225937281] [2022-02-23 20:03:20,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225937281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:20,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:20,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:20,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549236731] [2022-02-23 20:03:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:20,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:20,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:20,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:20,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:20,092 INFO L87 Difference]: Start difference. First operand 375 states and 570 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) [2022-02-23 20:03:21,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:24,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:26,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:26,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:26,920 INFO L93 Difference]: Finished difference Result 432 states and 650 transitions. [2022-02-23 20:03:26,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:26,921 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 [2022-02-23 20:03:26,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:26,922 INFO L225 Difference]: With dead ends: 432 [2022-02-23 20:03:26,922 INFO L226 Difference]: Without dead ends: 432 [2022-02-23 20:03:26,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:26,923 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 75 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:26,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 477 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-02-23 20:03:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-02-23 20:03:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 381. [2022-02-23 20:03:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 376 states have (on average 1.5319148936170213) internal successors, (576), 376 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:26,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 580 transitions. [2022-02-23 20:03:26,928 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 580 transitions. Word has length 123 [2022-02-23 20:03:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:26,928 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 580 transitions. [2022-02-23 20:03:26,928 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) [2022-02-23 20:03:26,928 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 580 transitions. [2022-02-23 20:03:26,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-23 20:03:26,929 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:26,929 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] [2022-02-23 20:03:26,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 20:03:26,929 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:26,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:26,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1587884536, now seen corresponding path program 1 times [2022-02-23 20:03:26,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:26,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799157407] [2022-02-23 20:03:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:27,089 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:03:27,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:27,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799157407] [2022-02-23 20:03:27,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799157407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:27,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:27,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:27,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632048394] [2022-02-23 20:03:27,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:27,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:27,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:27,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:27,091 INFO L87 Difference]: Start difference. First operand 381 states and 580 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) [2022-02-23 20:03:28,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:30,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:31,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:32,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:32,241 INFO L93 Difference]: Finished difference Result 424 states and 636 transitions. [2022-02-23 20:03:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:32,241 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 [2022-02-23 20:03:32,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:32,243 INFO L225 Difference]: With dead ends: 424 [2022-02-23 20:03:32,243 INFO L226 Difference]: Without dead ends: 424 [2022-02-23 20:03:32,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:32,243 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 59 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:32,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 483 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-23 20:03:32,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-02-23 20:03:32,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 384. [2022-02-23 20:03:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5277044854881265) internal successors, (579), 379 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 583 transitions. [2022-02-23 20:03:32,248 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 583 transitions. Word has length 131 [2022-02-23 20:03:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:32,248 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 583 transitions. [2022-02-23 20:03:32,248 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) [2022-02-23 20:03:32,248 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 583 transitions. [2022-02-23 20:03:32,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-02-23 20:03:32,249 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:32,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:03:32,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 20:03:32,250 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:32,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:32,250 INFO L85 PathProgramCache]: Analyzing trace with hash 361584944, now seen corresponding path program 1 times [2022-02-23 20:03:32,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:32,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957321951] [2022-02-23 20:03:32,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:32,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:32,373 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:03:32,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:32,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957321951] [2022-02-23 20:03:32,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957321951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:32,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:32,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:32,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733754839] [2022-02-23 20:03:32,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:32,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:32,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:32,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:32,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:32,374 INFO L87 Difference]: Start difference. First operand 384 states and 583 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:34,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:34,785 INFO L93 Difference]: Finished difference Result 424 states and 635 transitions. [2022-02-23 20:03:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:34,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-02-23 20:03:34,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:34,787 INFO L225 Difference]: With dead ends: 424 [2022-02-23 20:03:34,787 INFO L226 Difference]: Without dead ends: 424 [2022-02-23 20:03:34,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:34,787 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 75 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:34,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 495 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:03:34,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-02-23 20:03:34,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 384. [2022-02-23 20:03:34,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.525065963060686) internal successors, (578), 379 states have internal predecessors, (578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:34,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 582 transitions. [2022-02-23 20:03:34,792 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 582 transitions. Word has length 139 [2022-02-23 20:03:34,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:34,792 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 582 transitions. [2022-02-23 20:03:34,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 582 transitions. [2022-02-23 20:03:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-02-23 20:03:34,793 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:34,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:03:34,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 20:03:34,793 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -608706063, now seen corresponding path program 1 times [2022-02-23 20:03:34,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:34,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898510575] [2022-02-23 20:03:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:34,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:34,884 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:03:34,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:34,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898510575] [2022-02-23 20:03:34,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898510575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:34,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:34,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:34,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051061966] [2022-02-23 20:03:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:34,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:34,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:34,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:34,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:34,886 INFO L87 Difference]: Start difference. First operand 384 states and 582 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) [2022-02-23 20:03:36,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:38,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:40,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:42,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:42,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:42,796 INFO L93 Difference]: Finished difference Result 535 states and 809 transitions. [2022-02-23 20:03:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:42,796 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 139 [2022-02-23 20:03:42,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:42,797 INFO L225 Difference]: With dead ends: 535 [2022-02-23 20:03:42,798 INFO L226 Difference]: Without dead ends: 535 [2022-02-23 20:03:42,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:42,798 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 119 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:42,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 378 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-02-23 20:03:42,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-02-23 20:03:42,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 448. [2022-02-23 20:03:42,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.5327313769751694) internal successors, (679), 443 states have internal predecessors, (679), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 683 transitions. [2022-02-23 20:03:42,804 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 683 transitions. Word has length 139 [2022-02-23 20:03:42,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:42,804 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 683 transitions. [2022-02-23 20:03:42,804 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) [2022-02-23 20:03:42,804 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 683 transitions. [2022-02-23 20:03:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-23 20:03:42,805 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:42,805 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:03:42,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 20:03:42,806 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:42,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:42,806 INFO L85 PathProgramCache]: Analyzing trace with hash -244662467, now seen corresponding path program 1 times [2022-02-23 20:03:42,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:42,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663503390] [2022-02-23 20:03:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:42,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-23 20:03:42,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:42,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663503390] [2022-02-23 20:03:42,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663503390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:42,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:42,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:42,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191608049] [2022-02-23 20:03:42,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:42,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:42,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:42,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:42,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:42,934 INFO L87 Difference]: Start difference. First operand 448 states and 683 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:44,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:46,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:48,552 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 [] [2022-02-23 20:03:48,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:48,971 INFO L93 Difference]: Finished difference Result 513 states and 767 transitions. [2022-02-23 20:03:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:48,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-23 20:03:48,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:48,973 INFO L225 Difference]: With dead ends: 513 [2022-02-23 20:03:48,973 INFO L226 Difference]: Without dead ends: 513 [2022-02-23 20:03:48,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:48,973 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 135 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:48,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:03:48,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-02-23 20:03:48,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 448. [2022-02-23 20:03:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.5146726862302482) internal successors, (671), 443 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:48,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 675 transitions. [2022-02-23 20:03:48,979 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 675 transitions. Word has length 144 [2022-02-23 20:03:48,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:48,979 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 675 transitions. [2022-02-23 20:03:48,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:03:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 675 transitions. [2022-02-23 20:03:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-23 20:03:48,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:48,980 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] [2022-02-23 20:03:48,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 20:03:48,980 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2078608695, now seen corresponding path program 1 times [2022-02-23 20:03:48,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:48,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928022645] [2022-02-23 20:03:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:48,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:03:49,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:49,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928022645] [2022-02-23 20:03:49,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928022645] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:49,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:49,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:49,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057721152] [2022-02-23 20:03:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:49,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:49,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:49,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:49,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:49,072 INFO L87 Difference]: Start difference. First operand 448 states and 675 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) [2022-02-23 20:03:52,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:54,372 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 [] [2022-02-23 20:03:54,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:03:54,810 INFO L93 Difference]: Finished difference Result 553 states and 824 transitions. [2022-02-23 20:03:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:03:54,810 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 [2022-02-23 20:03:54,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:03:54,812 INFO L225 Difference]: With dead ends: 553 [2022-02-23 20:03:54,812 INFO L226 Difference]: Without dead ends: 553 [2022-02-23 20:03:54,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:03:54,812 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 115 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:03:54,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 386 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-23 20:03:54,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-23 20:03:54,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 478. [2022-02-23 20:03:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5052854122621564) internal successors, (712), 473 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) [2022-02-23 20:03:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 716 transitions. [2022-02-23 20:03:54,818 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 716 transitions. Word has length 144 [2022-02-23 20:03:54,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:03:54,818 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 716 transitions. [2022-02-23 20:03:54,818 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) [2022-02-23 20:03:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 716 transitions. [2022-02-23 20:03:54,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-23 20:03:54,819 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:03:54,822 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] [2022-02-23 20:03:54,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 20:03:54,823 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:03:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:03:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1171735351, now seen corresponding path program 1 times [2022-02-23 20:03:54,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:03:54,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5220850] [2022-02-23 20:03:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:03:54,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:03:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:54,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:03:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:03:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:03:54,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:03:54,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5220850] [2022-02-23 20:03:54,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5220850] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:03:54,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:03:54,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:03:54,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75438854] [2022-02-23 20:03:54,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:03:54,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:03:54,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:03:54,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:03:54,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:03:54,923 INFO L87 Difference]: Start difference. First operand 478 states and 716 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) [2022-02-23 20:03:57,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:03:59,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:01,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:02,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:02,408 INFO L93 Difference]: Finished difference Result 543 states and 802 transitions. [2022-02-23 20:04:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:02,409 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 [2022-02-23 20:04:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:02,410 INFO L225 Difference]: With dead ends: 543 [2022-02-23 20:04:02,410 INFO L226 Difference]: Without dead ends: 543 [2022-02-23 20:04:02,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:02,411 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 114 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:02,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 459 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-23 20:04:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-02-23 20:04:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-02-23 20:04:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.492600422832981) internal successors, (706), 473 states have internal predecessors, (706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 710 transitions. [2022-02-23 20:04:02,416 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 710 transitions. Word has length 145 [2022-02-23 20:04:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:02,417 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 710 transitions. [2022-02-23 20:04:02,417 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) [2022-02-23 20:04:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 710 transitions. [2022-02-23 20:04:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-23 20:04:02,418 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:02,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:04:02,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 20:04:02,418 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:02,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1581519040, now seen corresponding path program 1 times [2022-02-23 20:04:02,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:02,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658322728] [2022-02-23 20:04:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:02,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:02,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:04:02,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:02,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658322728] [2022-02-23 20:04:02,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658322728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:02,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:02,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:02,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116826057] [2022-02-23 20:04:02,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:02,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:02,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:02,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:02,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:02,515 INFO L87 Difference]: Start difference. First operand 478 states and 710 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:04,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:04,934 INFO L93 Difference]: Finished difference Result 543 states and 800 transitions. [2022-02-23 20:04:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:04,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-23 20:04:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:04,936 INFO L225 Difference]: With dead ends: 543 [2022-02-23 20:04:04,936 INFO L226 Difference]: Without dead ends: 543 [2022-02-23 20:04:04,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:04,937 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 106 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:04,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 386 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:04:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-02-23 20:04:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-02-23 20:04:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4883720930232558) internal successors, (704), 473 states have internal predecessors, (704), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:04,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 708 transitions. [2022-02-23 20:04:04,942 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 708 transitions. Word has length 145 [2022-02-23 20:04:04,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:04,942 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 708 transitions. [2022-02-23 20:04:04,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 708 transitions. [2022-02-23 20:04:04,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:04:04,943 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:04,943 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] [2022-02-23 20:04:04,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 20:04:04,943 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:04,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:04,944 INFO L85 PathProgramCache]: Analyzing trace with hash 249107055, now seen corresponding path program 1 times [2022-02-23 20:04:04,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:04,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497419390] [2022-02-23 20:04:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:04,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:05,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:04:05,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:05,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497419390] [2022-02-23 20:04:05,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497419390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:05,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:05,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:05,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442517931] [2022-02-23 20:04:05,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:05,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:05,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:05,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:05,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:05,041 INFO L87 Difference]: Start difference. First operand 478 states and 708 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) [2022-02-23 20:04:07,612 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 [] [2022-02-23 20:04:08,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:08,402 INFO L93 Difference]: Finished difference Result 506 states and 746 transitions. [2022-02-23 20:04:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:08,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:04:08,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:08,403 INFO L225 Difference]: With dead ends: 506 [2022-02-23 20:04:08,403 INFO L226 Difference]: Without dead ends: 506 [2022-02-23 20:04:08,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:08,404 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:08,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 511 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-23 20:04:08,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-02-23 20:04:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 478. [2022-02-23 20:04:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4862579281183932) internal successors, (703), 473 states have internal predecessors, (703), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 707 transitions. [2022-02-23 20:04:08,409 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 707 transitions. Word has length 147 [2022-02-23 20:04:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:08,409 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 707 transitions. [2022-02-23 20:04:08,409 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) [2022-02-23 20:04:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 707 transitions. [2022-02-23 20:04:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-23 20:04:08,410 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:08,410 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] [2022-02-23 20:04:08,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 20:04:08,411 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1898427519, now seen corresponding path program 1 times [2022-02-23 20:04:08,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:08,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205484390] [2022-02-23 20:04:08,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:08,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:08,533 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:04:08,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:08,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205484390] [2022-02-23 20:04:08,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205484390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:08,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:08,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:08,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999459847] [2022-02-23 20:04:08,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:08,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:08,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:08,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:08,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:08,534 INFO L87 Difference]: Start difference. First operand 478 states and 707 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) [2022-02-23 20:04:11,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:12,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:14,186 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 [] [2022-02-23 20:04:14,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:14,586 INFO L93 Difference]: Finished difference Result 543 states and 792 transitions. [2022-02-23 20:04:14,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:14,587 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 [2022-02-23 20:04:14,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:14,588 INFO L225 Difference]: With dead ends: 543 [2022-02-23 20:04:14,588 INFO L226 Difference]: Without dead ends: 543 [2022-02-23 20:04:14,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:14,589 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 114 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:14,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:04:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-02-23 20:04:14,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-02-23 20:04:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4714587737843552) internal successors, (696), 473 states have internal predecessors, (696), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 700 transitions. [2022-02-23 20:04:14,594 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 700 transitions. Word has length 148 [2022-02-23 20:04:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:14,594 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 700 transitions. [2022-02-23 20:04:14,594 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) [2022-02-23 20:04:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 700 transitions. [2022-02-23 20:04:14,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 20:04:14,595 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:14,595 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] [2022-02-23 20:04:14,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 20:04:14,596 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1088275173, now seen corresponding path program 1 times [2022-02-23 20:04:14,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:14,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619083884] [2022-02-23 20:04:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:14,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:14,681 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-23 20:04:14,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:14,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619083884] [2022-02-23 20:04:14,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619083884] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:14,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:14,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:04:14,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492254338] [2022-02-23 20:04:14,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:14,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:04:14,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:14,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:04:14,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:04:14,682 INFO L87 Difference]: Start difference. First operand 478 states and 700 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) [2022-02-23 20:04:17,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:19,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:19,634 INFO L93 Difference]: Finished difference Result 922 states and 1351 transitions. [2022-02-23 20:04:19,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:04:19,635 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 [2022-02-23 20:04:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:19,637 INFO L225 Difference]: With dead ends: 922 [2022-02-23 20:04:19,637 INFO L226 Difference]: Without dead ends: 922 [2022-02-23 20:04:19,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:04:19,637 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 131 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:19,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 442 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 286 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:04:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-02-23 20:04:19,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 920. [2022-02-23 20:04:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 915 states have (on average 1.4710382513661202) internal successors, (1346), 915 states have internal predecessors, (1346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1350 transitions. [2022-02-23 20:04:19,646 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1350 transitions. Word has length 153 [2022-02-23 20:04:19,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:19,647 INFO L470 AbstractCegarLoop]: Abstraction has 920 states and 1350 transitions. [2022-02-23 20:04:19,647 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) [2022-02-23 20:04:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1350 transitions. [2022-02-23 20:04:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 20:04:19,648 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:19,648 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] [2022-02-23 20:04:19,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 20:04:19,648 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:19,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:19,649 INFO L85 PathProgramCache]: Analyzing trace with hash -11721764, now seen corresponding path program 1 times [2022-02-23 20:04:19,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:19,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982135396] [2022-02-23 20:04:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:19,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:19,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-23 20:04:19,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:19,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982135396] [2022-02-23 20:04:19,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982135396] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:19,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:19,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:04:19,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691232001] [2022-02-23 20:04:19,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:19,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:04:19,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:19,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:04:19,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:04:19,776 INFO L87 Difference]: Start difference. First operand 920 states and 1350 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) [2022-02-23 20:04:21,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:23,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:23,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:23,649 INFO L93 Difference]: Finished difference Result 947 states and 1385 transitions. [2022-02-23 20:04:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:04:23,649 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 [2022-02-23 20:04:23,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:23,651 INFO L225 Difference]: With dead ends: 947 [2022-02-23 20:04:23,651 INFO L226 Difference]: Without dead ends: 947 [2022-02-23 20:04:23,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:04:23,652 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:23,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-23 20:04:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-02-23 20:04:23,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2022-02-23 20:04:23,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 942 states have (on average 1.4660297239915074) internal successors, (1381), 942 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1385 transitions. [2022-02-23 20:04:23,663 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1385 transitions. Word has length 153 [2022-02-23 20:04:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:23,663 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 1385 transitions. [2022-02-23 20:04:23,663 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) [2022-02-23 20:04:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1385 transitions. [2022-02-23 20:04:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 20:04:23,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:23,664 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] [2022-02-23 20:04:23,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 20:04:23,665 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1918509085, now seen corresponding path program 1 times [2022-02-23 20:04:23,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:23,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339006726] [2022-02-23 20:04:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:23,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:23,745 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-02-23 20:04:23,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:23,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339006726] [2022-02-23 20:04:23,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339006726] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:23,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:23,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:04:23,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336027440] [2022-02-23 20:04:23,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:23,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:04:23,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:23,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:04:23,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:04:23,746 INFO L87 Difference]: Start difference. First operand 947 states and 1385 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) [2022-02-23 20:04:25,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:27,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:27,859 INFO L93 Difference]: Finished difference Result 949 states and 1387 transitions. [2022-02-23 20:04:27,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:04:27,859 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 [2022-02-23 20:04:27,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:27,862 INFO L225 Difference]: With dead ends: 949 [2022-02-23 20:04:27,862 INFO L226 Difference]: Without dead ends: 949 [2022-02-23 20:04:27,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:04:27,862 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:27,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:04:27,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-02-23 20:04:27,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2022-02-23 20:04:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.465042372881356) internal successors, (1383), 944 states have internal predecessors, (1383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1387 transitions. [2022-02-23 20:04:27,871 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1387 transitions. Word has length 153 [2022-02-23 20:04:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:27,871 INFO L470 AbstractCegarLoop]: Abstraction has 949 states and 1387 transitions. [2022-02-23 20:04:27,871 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) [2022-02-23 20:04:27,871 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1387 transitions. [2022-02-23 20:04:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-23 20:04:27,873 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:27,873 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] [2022-02-23 20:04:27,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 20:04:27,873 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:27,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1516319031, now seen corresponding path program 1 times [2022-02-23 20:04:27,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:27,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700404951] [2022-02-23 20:04:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:27,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:27,996 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-23 20:04:27,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:27,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700404951] [2022-02-23 20:04:27,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700404951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:27,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:27,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:27,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849308692] [2022-02-23 20:04:27,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:27,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:27,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:27,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:27,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:27,998 INFO L87 Difference]: Start difference. First operand 949 states and 1387 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) [2022-02-23 20:04:29,380 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 [] [2022-02-23 20:04:31,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:33,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:33,798 INFO L93 Difference]: Finished difference Result 990 states and 1436 transitions. [2022-02-23 20:04:33,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:33,798 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 154 [2022-02-23 20:04:33,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:33,801 INFO L225 Difference]: With dead ends: 990 [2022-02-23 20:04:33,801 INFO L226 Difference]: Without dead ends: 990 [2022-02-23 20:04:33,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:33,801 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 42 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:33,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 527 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-23 20:04:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-02-23 20:04:33,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 949. [2022-02-23 20:04:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.4629237288135593) internal successors, (1381), 944 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:33,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1385 transitions. [2022-02-23 20:04:33,810 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1385 transitions. Word has length 154 [2022-02-23 20:04:33,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:33,810 INFO L470 AbstractCegarLoop]: Abstraction has 949 states and 1385 transitions. [2022-02-23 20:04:33,810 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) [2022-02-23 20:04:33,810 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1385 transitions. [2022-02-23 20:04:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-23 20:04:33,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:33,812 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] [2022-02-23 20:04:33,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 20:04:33,812 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:33,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1851421981, now seen corresponding path program 1 times [2022-02-23 20:04:33,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:33,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893002880] [2022-02-23 20:04:33,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:33,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:33,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:33,900 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-23 20:04:33,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:33,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893002880] [2022-02-23 20:04:33,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893002880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:33,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:33,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:33,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485059836] [2022-02-23 20:04:33,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:33,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:33,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:33,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:33,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:33,902 INFO L87 Difference]: Start difference. First operand 949 states and 1385 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) [2022-02-23 20:04:36,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:38,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:40,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:40,628 INFO L93 Difference]: Finished difference Result 986 states and 1430 transitions. [2022-02-23 20:04:40,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:40,628 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 155 [2022-02-23 20:04:40,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:40,630 INFO L225 Difference]: With dead ends: 986 [2022-02-23 20:04:40,630 INFO L226 Difference]: Without dead ends: 986 [2022-02-23 20:04:40,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:40,631 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 39 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:40,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 529 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2022-02-23 20:04:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-02-23 20:04:40,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 949. [2022-02-23 20:04:40,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.4608050847457628) internal successors, (1379), 944 states have internal predecessors, (1379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1383 transitions. [2022-02-23 20:04:40,639 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1383 transitions. Word has length 155 [2022-02-23 20:04:40,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:40,640 INFO L470 AbstractCegarLoop]: Abstraction has 949 states and 1383 transitions. [2022-02-23 20:04:40,640 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) [2022-02-23 20:04:40,640 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1383 transitions. [2022-02-23 20:04:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-23 20:04:40,641 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:40,641 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, 1] [2022-02-23 20:04:40,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 20:04:40,641 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:40,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2103039724, now seen corresponding path program 1 times [2022-02-23 20:04:40,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:40,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373597027] [2022-02-23 20:04:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:40,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:40,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-02-23 20:04:40,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:40,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373597027] [2022-02-23 20:04:40,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373597027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:40,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:40,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:40,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292971446] [2022-02-23 20:04:40,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:40,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:40,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:40,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:40,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:40,730 INFO L87 Difference]: Start difference. First operand 949 states and 1383 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) [2022-02-23 20:04:42,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:42,393 INFO L93 Difference]: Finished difference Result 1028 states and 1494 transitions. [2022-02-23 20:04:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:42,393 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 155 [2022-02-23 20:04:42,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:42,396 INFO L225 Difference]: With dead ends: 1028 [2022-02-23 20:04:42,396 INFO L226 Difference]: Without dead ends: 1028 [2022-02-23 20:04:42,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:42,398 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 28 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:42,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 587 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-23 20:04:42,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-02-23 20:04:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1001. [2022-02-23 20:04:42,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4608433734939759) internal successors, (1455), 996 states have internal predecessors, (1455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1459 transitions. [2022-02-23 20:04:42,408 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1459 transitions. Word has length 155 [2022-02-23 20:04:42,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:42,408 INFO L470 AbstractCegarLoop]: Abstraction has 1001 states and 1459 transitions. [2022-02-23 20:04:42,408 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) [2022-02-23 20:04:42,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1459 transitions. [2022-02-23 20:04:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-02-23 20:04:42,410 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:42,410 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, 1] [2022-02-23 20:04:42,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 20:04:42,410 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:42,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:42,411 INFO L85 PathProgramCache]: Analyzing trace with hash -127001634, now seen corresponding path program 1 times [2022-02-23 20:04:42,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:42,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697524212] [2022-02-23 20:04:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:42,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:42,536 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:04:42,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:42,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697524212] [2022-02-23 20:04:42,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697524212] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:42,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:42,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:42,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927434404] [2022-02-23 20:04:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:42,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:42,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:42,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:42,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:42,538 INFO L87 Difference]: Start difference. First operand 1001 states and 1459 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) [2022-02-23 20:04:45,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:47,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:47,901 INFO L93 Difference]: Finished difference Result 1038 states and 1504 transitions. [2022-02-23 20:04:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:47,901 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 [2022-02-23 20:04:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:47,904 INFO L225 Difference]: With dead ends: 1038 [2022-02-23 20:04:47,904 INFO L226 Difference]: Without dead ends: 1038 [2022-02-23 20:04:47,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:47,904 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 48 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:47,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 529 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-23 20:04:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-02-23 20:04:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1001. [2022-02-23 20:04:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4588353413654618) internal successors, (1453), 996 states have internal predecessors, (1453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1457 transitions. [2022-02-23 20:04:47,914 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1457 transitions. Word has length 161 [2022-02-23 20:04:47,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:47,914 INFO L470 AbstractCegarLoop]: Abstraction has 1001 states and 1457 transitions. [2022-02-23 20:04:47,915 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) [2022-02-23 20:04:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1457 transitions. [2022-02-23 20:04:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-23 20:04:47,916 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:47,916 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, 1] [2022-02-23 20:04:47,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 20:04:47,916 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:47,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash 760045934, now seen corresponding path program 1 times [2022-02-23 20:04:47,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:47,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219281183] [2022-02-23 20:04:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:47,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:04:48,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:48,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219281183] [2022-02-23 20:04:48,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219281183] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:48,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:48,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:48,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082283414] [2022-02-23 20:04:48,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:48,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:48,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:48,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:48,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:48,007 INFO L87 Difference]: Start difference. First operand 1001 states and 1457 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:49,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:51,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:53,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:55,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:04:55,813 INFO L93 Difference]: Finished difference Result 1128 states and 1617 transitions. [2022-02-23 20:04:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:04:55,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-02-23 20:04:55,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:04:55,816 INFO L225 Difference]: With dead ends: 1128 [2022-02-23 20:04:55,816 INFO L226 Difference]: Without dead ends: 1128 [2022-02-23 20:04:55,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:04:55,816 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:04:55,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 459 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-23 20:04:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-02-23 20:04:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1001. [2022-02-23 20:04:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4447791164658634) internal successors, (1439), 996 states have internal predecessors, (1439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:55,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1443 transitions. [2022-02-23 20:04:55,838 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1443 transitions. Word has length 162 [2022-02-23 20:04:55,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:04:55,838 INFO L470 AbstractCegarLoop]: Abstraction has 1001 states and 1443 transitions. [2022-02-23 20:04:55,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:04:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1443 transitions. [2022-02-23 20:04:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-23 20:04:55,856 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:04:55,856 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] [2022-02-23 20:04:55,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-23 20:04:55,856 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:04:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:04:55,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1459412900, now seen corresponding path program 1 times [2022-02-23 20:04:55,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:04:55,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672597631] [2022-02-23 20:04:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:04:55,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:04:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:04:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:04:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:04:55,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:04:55,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672597631] [2022-02-23 20:04:55,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672597631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:04:55,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:04:55,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:04:55,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636575691] [2022-02-23 20:04:55,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:04:55,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:04:55,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:04:55,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:04:55,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:04:55,964 INFO L87 Difference]: Start difference. First operand 1001 states and 1443 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) [2022-02-23 20:04:57,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:04:58,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:00,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:01,351 INFO L93 Difference]: Finished difference Result 1034 states and 1482 transitions. [2022-02-23 20:05:01,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:05:01,352 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 [2022-02-23 20:05:01,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:01,354 INFO L225 Difference]: With dead ends: 1034 [2022-02-23 20:05:01,354 INFO L226 Difference]: Without dead ends: 1034 [2022-02-23 20:05:01,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:05:01,355 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 38 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:01,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 535 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-23 20:05:01,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2022-02-23 20:05:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1001. [2022-02-23 20:05:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4427710843373494) internal successors, (1437), 996 states have internal predecessors, (1437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1441 transitions. [2022-02-23 20:05:01,363 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1441 transitions. Word has length 164 [2022-02-23 20:05:01,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:01,363 INFO L470 AbstractCegarLoop]: Abstraction has 1001 states and 1441 transitions. [2022-02-23 20:05:01,363 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) [2022-02-23 20:05:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1441 transitions. [2022-02-23 20:05:01,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-23 20:05:01,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:01,365 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] [2022-02-23 20:05:01,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 20:05:01,365 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:01,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:01,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1551372169, now seen corresponding path program 1 times [2022-02-23 20:05:01,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:01,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88263507] [2022-02-23 20:05:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:01,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:01,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:05:01,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:01,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88263507] [2022-02-23 20:05:01,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88263507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:01,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:01,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:05:01,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982734824] [2022-02-23 20:05:01,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:01,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:05:01,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:01,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:05:01,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:05:01,456 INFO L87 Difference]: Start difference. First operand 1001 states and 1441 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) [2022-02-23 20:05:02,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:04,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:06,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:07,092 INFO L93 Difference]: Finished difference Result 1026 states and 1470 transitions. [2022-02-23 20:05:07,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:05:07,093 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 [2022-02-23 20:05:07,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:07,096 INFO L225 Difference]: With dead ends: 1026 [2022-02-23 20:05:07,096 INFO L226 Difference]: Without dead ends: 1026 [2022-02-23 20:05:07,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:05:07,096 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 33 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:07,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 539 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-23 20:05:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2022-02-23 20:05:07,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1001. [2022-02-23 20:05:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4407630522088353) internal successors, (1435), 996 states have internal predecessors, (1435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1439 transitions. [2022-02-23 20:05:07,117 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1439 transitions. Word has length 165 [2022-02-23 20:05:07,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:07,117 INFO L470 AbstractCegarLoop]: Abstraction has 1001 states and 1439 transitions. [2022-02-23 20:05:07,117 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) [2022-02-23 20:05:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1439 transitions. [2022-02-23 20:05:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-23 20:05:07,140 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:07,140 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] [2022-02-23 20:05:07,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 20:05:07,140 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:07,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:07,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1131694392, now seen corresponding path program 1 times [2022-02-23 20:05:07,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:07,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845373249] [2022-02-23 20:05:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:07,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-23 20:05:07,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:07,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845373249] [2022-02-23 20:05:07,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845373249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:07,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:07,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:05:07,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480583507] [2022-02-23 20:05:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:07,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:05:07,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:07,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:05:07,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:05:07,257 INFO L87 Difference]: Start difference. First operand 1001 states and 1439 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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) [2022-02-23 20:05:10,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:11,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:11,202 INFO L93 Difference]: Finished difference Result 1472 states and 2118 transitions. [2022-02-23 20:05:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:05:11,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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 172 [2022-02-23 20:05:11,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:11,206 INFO L225 Difference]: With dead ends: 1472 [2022-02-23 20:05:11,206 INFO L226 Difference]: Without dead ends: 1472 [2022-02-23 20:05:11,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:05:11,206 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:11,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 570 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-02-23 20:05:11,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-02-23 20:05:11,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-02-23 20:05:11,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1467 states have (on average 1.4410361281526927) internal successors, (2114), 1467 states have internal predecessors, (2114), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:11,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2118 transitions. [2022-02-23 20:05:11,220 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2118 transitions. Word has length 172 [2022-02-23 20:05:11,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:11,220 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 2118 transitions. [2022-02-23 20:05:11,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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) [2022-02-23 20:05:11,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2118 transitions. [2022-02-23 20:05:11,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-23 20:05:11,222 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:11,222 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] [2022-02-23 20:05:11,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 20:05:11,222 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:11,222 INFO L85 PathProgramCache]: Analyzing trace with hash 57013455, now seen corresponding path program 1 times [2022-02-23 20:05:11,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:11,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277174753] [2022-02-23 20:05:11,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:11,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:05:11,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:11,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277174753] [2022-02-23 20:05:11,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277174753] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:11,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:11,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:05:11,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080185946] [2022-02-23 20:05:11,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:11,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:05:11,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:11,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:05:11,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:05:11,343 INFO L87 Difference]: Start difference. First operand 1472 states and 2118 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:12,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:14,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:15,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:15,150 INFO L93 Difference]: Finished difference Result 1908 states and 2745 transitions. [2022-02-23 20:05:15,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:05:15,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-23 20:05:15,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:15,156 INFO L225 Difference]: With dead ends: 1908 [2022-02-23 20:05:15,156 INFO L226 Difference]: Without dead ends: 1908 [2022-02-23 20:05:15,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:05:15,156 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:15,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 494 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-02-23 20:05:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-02-23 20:05:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1903. [2022-02-23 20:05:15,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1898 states have (on average 1.4420442571127503) internal successors, (2737), 1898 states have internal predecessors, (2737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:15,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2741 transitions. [2022-02-23 20:05:15,172 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2741 transitions. Word has length 173 [2022-02-23 20:05:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:15,172 INFO L470 AbstractCegarLoop]: Abstraction has 1903 states and 2741 transitions. [2022-02-23 20:05:15,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2741 transitions. [2022-02-23 20:05:15,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-02-23 20:05:15,174 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:15,174 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:05:15,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-23 20:05:15,174 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:15,175 INFO L85 PathProgramCache]: Analyzing trace with hash -57063487, now seen corresponding path program 1 times [2022-02-23 20:05:15,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:15,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877720278] [2022-02-23 20:05:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:15,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-02-23 20:05:15,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:15,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877720278] [2022-02-23 20:05:15,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877720278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:15,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:15,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:05:15,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600724348] [2022-02-23 20:05:15,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:15,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:05:15,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:15,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:05:15,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:05:15,319 INFO L87 Difference]: Start difference. First operand 1903 states and 2741 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:18,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:20,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:21,238 INFO L93 Difference]: Finished difference Result 2100 states and 3024 transitions. [2022-02-23 20:05:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:05:21,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2022-02-23 20:05:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:21,242 INFO L225 Difference]: With dead ends: 2100 [2022-02-23 20:05:21,242 INFO L226 Difference]: Without dead ends: 2100 [2022-02-23 20:05:21,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:05:21,243 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 38 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:21,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-23 20:05:21,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-02-23 20:05:21,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2015. [2022-02-23 20:05:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4432835820895522) internal successors, (2901), 2010 states have internal predecessors, (2901), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2905 transitions. [2022-02-23 20:05:21,263 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2905 transitions. Word has length 183 [2022-02-23 20:05:21,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:21,263 INFO L470 AbstractCegarLoop]: Abstraction has 2015 states and 2905 transitions. [2022-02-23 20:05:21,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2905 transitions. [2022-02-23 20:05:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-23 20:05:21,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:21,265 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:05:21,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-23 20:05:21,265 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:21,265 INFO L85 PathProgramCache]: Analyzing trace with hash 20707135, now seen corresponding path program 1 times [2022-02-23 20:05:21,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:21,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105102534] [2022-02-23 20:05:21,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:21,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-23 20:05:21,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:21,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105102534] [2022-02-23 20:05:21,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105102534] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:21,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:21,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:05:21,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817135] [2022-02-23 20:05:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:21,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:05:21,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:05:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:05:21,367 INFO L87 Difference]: Start difference. First operand 2015 states and 2905 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:23,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:24,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:25,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:25,387 INFO L93 Difference]: Finished difference Result 2222 states and 3190 transitions. [2022-02-23 20:05:25,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:05:25,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-02-23 20:05:25,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:25,418 INFO L225 Difference]: With dead ends: 2222 [2022-02-23 20:05:25,418 INFO L226 Difference]: Without dead ends: 2222 [2022-02-23 20:05:25,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:05:25,418 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 63 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:25,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 586 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:05:25,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-02-23 20:05:25,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2099. [2022-02-23 20:05:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 2094 states have (on average 1.4441260744985673) internal successors, (3024), 2094 states have internal predecessors, (3024), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 3028 transitions. [2022-02-23 20:05:25,442 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 3028 transitions. Word has length 188 [2022-02-23 20:05:25,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:25,442 INFO L470 AbstractCegarLoop]: Abstraction has 2099 states and 3028 transitions. [2022-02-23 20:05:25,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 3028 transitions. [2022-02-23 20:05:25,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-23 20:05:25,444 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:25,444 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:05:25,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-23 20:05:25,444 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:25,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:25,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1813520391, now seen corresponding path program 1 times [2022-02-23 20:05:25,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:25,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216572154] [2022-02-23 20:05:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:25,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:25,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-02-23 20:05:25,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:25,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216572154] [2022-02-23 20:05:25,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216572154] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:25,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:25,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:05:25,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623370209] [2022-02-23 20:05:25,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:25,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:05:25,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:25,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:05:25,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:05:25,547 INFO L87 Difference]: Start difference. First operand 2099 states and 3028 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:28,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:29,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:30,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:30,634 INFO L93 Difference]: Finished difference Result 2222 states and 3187 transitions. [2022-02-23 20:05:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:05:30,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-02-23 20:05:30,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:30,638 INFO L225 Difference]: With dead ends: 2222 [2022-02-23 20:05:30,639 INFO L226 Difference]: Without dead ends: 2222 [2022-02-23 20:05:30,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:05:30,639 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 55 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:30,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 586 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-23 20:05:30,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-02-23 20:05:30,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2120. [2022-02-23 20:05:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4425531914893617) internal successors, (3051), 2115 states have internal predecessors, (3051), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3055 transitions. [2022-02-23 20:05:30,655 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3055 transitions. Word has length 195 [2022-02-23 20:05:30,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:30,655 INFO L470 AbstractCegarLoop]: Abstraction has 2120 states and 3055 transitions. [2022-02-23 20:05:30,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:30,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3055 transitions. [2022-02-23 20:05:30,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-23 20:05:30,657 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:30,658 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-23 20:05:30,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-23 20:05:30,658 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:30,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1820237747, now seen corresponding path program 1 times [2022-02-23 20:05:30,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:30,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093848036] [2022-02-23 20:05:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:30,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:30,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-02-23 20:05:30,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:30,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093848036] [2022-02-23 20:05:30,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093848036] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:30,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:30,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:05:30,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418421365] [2022-02-23 20:05:30,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:30,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:05:30,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:30,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:05:30,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:05:30,792 INFO L87 Difference]: Start difference. First operand 2120 states and 3055 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:32,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:33,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:33,235 INFO L93 Difference]: Finished difference Result 2362 states and 3372 transitions. [2022-02-23 20:05:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:05:33,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-23 20:05:33,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:33,238 INFO L225 Difference]: With dead ends: 2362 [2022-02-23 20:05:33,238 INFO L226 Difference]: Without dead ends: 2362 [2022-02-23 20:05:33,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:05:33,239 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 104 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:33,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 372 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-23 20:05:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-02-23 20:05:33,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2120. [2022-02-23 20:05:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4368794326241134) internal successors, (3039), 2115 states have internal predecessors, (3039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3043 transitions. [2022-02-23 20:05:33,256 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3043 transitions. Word has length 196 [2022-02-23 20:05:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:33,257 INFO L470 AbstractCegarLoop]: Abstraction has 2120 states and 3043 transitions. [2022-02-23 20:05:33,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3043 transitions. [2022-02-23 20:05:33,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-23 20:05:33,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:33,259 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:05:33,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-23 20:05:33,259 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash 763814783, now seen corresponding path program 1 times [2022-02-23 20:05:33,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:33,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714265521] [2022-02-23 20:05:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:33,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:33,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-23 20:05:33,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:33,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714265521] [2022-02-23 20:05:33,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714265521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:05:33,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:05:33,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 20:05:33,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364424394] [2022-02-23 20:05:33,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:05:33,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:05:33,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:05:33,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:05:33,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-23 20:05:33,662 INFO L87 Difference]: Start difference. First operand 2120 states and 3043 transitions. Second operand has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:35,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:36,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:39,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:40,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:41,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:05:42,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:05:42,365 INFO L93 Difference]: Finished difference Result 2128 states and 3053 transitions. [2022-02-23 20:05:42,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:05:42,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 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 197 [2022-02-23 20:05:42,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:05:42,369 INFO L225 Difference]: With dead ends: 2128 [2022-02-23 20:05:42,369 INFO L226 Difference]: Without dead ends: 2120 [2022-02-23 20:05:42,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-23 20:05:42,369 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:05:42,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-02-23 20:05:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2022-02-23 20:05:42,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2120. [2022-02-23 20:05:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4364066193853429) internal successors, (3038), 2115 states have internal predecessors, (3038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:42,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3042 transitions. [2022-02-23 20:05:42,398 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3042 transitions. Word has length 197 [2022-02-23 20:05:42,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:05:42,399 INFO L470 AbstractCegarLoop]: Abstraction has 2120 states and 3042 transitions. [2022-02-23 20:05:42,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:05:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3042 transitions. [2022-02-23 20:05:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-23 20:05:42,401 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:05:42,401 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:05:42,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-23 20:05:42,401 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:05:42,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:05:42,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2018596800, now seen corresponding path program 1 times [2022-02-23 20:05:42,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:05:42,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576677531] [2022-02-23 20:05:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:42,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:05:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:05:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-23 20:05:43,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:05:43,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576677531] [2022-02-23 20:05:43,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576677531] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:05:43,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874916267] [2022-02-23 20:05:43,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:05:43,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:05:43,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:05:43,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:05:43,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 20:05:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:05:44,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 145 conjunts are in the unsatisfiable core [2022-02-23 20:05:44,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:05:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:05:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:05:44,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:05:44,933 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-02-23 20:05:44,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 11624174 treesize of output 2465916 [2022-02-23 20:05:45,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:06:39,515 INFO L244 Elim1Store]: Index analysis took 1948 ms