/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.16.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:14:49,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:14:49,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:14:49,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:14:49,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:14:49,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:14:49,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:14:49,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:14:49,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:14:49,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:14:49,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:14:49,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:14:49,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:14:49,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:14:49,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:14:49,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:14:49,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:14:49,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:14:49,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:14:49,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:14:49,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:14:49,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:14:49,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:14:49,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:14:49,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 20:14:49,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 20:14:49,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 20:14:49,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 20:14:49,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 20:14:49,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 20:14:49,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 20:14:49,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 20:14:49,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 20:14:49,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 20:14:49,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 20:14:49,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 20:14:49,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 20:14:49,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 20:14:49,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:14:49,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:14:49,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:14:49,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 20:14:49,126 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:14:49,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:14:49,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:14:49,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:14:49,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:14:49,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:14:49,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 20:14:49,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:14:49,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:14:49,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:14:49,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:14:49,130 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:14:49,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:14:49,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:14:49,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:14:49,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:14:49,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:14:49,308 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:14:49,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-02-23 20:14:49,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee5c0c045/c558c093fea84ef7a99da348297bc20f/FLAG8a2db38ce [2022-02-23 20:14:49,783 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:14:49,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-02-23 20:14:49,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee5c0c045/c558c093fea84ef7a99da348297bc20f/FLAG8a2db38ce [2022-02-23 20:14:49,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee5c0c045/c558c093fea84ef7a99da348297bc20f [2022-02-23 20:14:49,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:14:49,805 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:14:49,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:14:49,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:14:49,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:14:49,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:14:49" (1/1) ... [2022-02-23 20:14:49,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672962e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:49, skipping insertion in model container [2022-02-23 20:14:49,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:14:49" (1/1) ... [2022-02-23 20:14:49,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:14:49,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:14:50,191 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.16.i.cil-1.c[77378,77391] [2022-02-23 20:14:50,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:14:50,204 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:14:50,286 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.16.i.cil-1.c[77378,77391] [2022-02-23 20:14:50,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:14:50,309 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:14:50,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50 WrapperNode [2022-02-23 20:14:50,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:14:50,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:14:50,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:14:50,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:14:50,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:14:50,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:14:50,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:14:50,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:14:50,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (1/1) ... [2022-02-23 20:14:50,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:14:50,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:14:50,456 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 20:14:50,467 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 20:14:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:14:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:14:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:14:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-23 20:14:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-23 20:14:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:14:50,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 20:14:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 20:14:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 20:14:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 20:14:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 20:14:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 20:14:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:14:50,616 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:14:50,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:14:51,329 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 20:14:51,706 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-23 20:14:51,706 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-23 20:14:51,714 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:14:51,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:14:51,720 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 20:14:51,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:51 BoogieIcfgContainer [2022-02-23 20:14:51,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:14:51,722 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:14:51,722 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:14:51,723 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:14:51,725 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:51" (1/1) ... [2022-02-23 20:14:51,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:14:51 BasicIcfg [2022-02-23 20:14:51,754 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:14:51,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:14:51,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:14:51,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:14:51,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:14:49" (1/4) ... [2022-02-23 20:14:51,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be78ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:14:51, skipping insertion in model container [2022-02-23 20:14:51,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:14:50" (2/4) ... [2022-02-23 20:14:51,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be78ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:14:51, skipping insertion in model container [2022-02-23 20:14:51,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:14:51" (3/4) ... [2022-02-23 20:14:51,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be78ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:14:51, skipping insertion in model container [2022-02-23 20:14:51,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:14:51" (4/4) ... [2022-02-23 20:14:51,759 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-1.cJordan [2022-02-23 20:14:51,763 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:14:51,763 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:14:51,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:14:51,792 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 20:14:51,793 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:14:51,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 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 20:14:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 20:14:51,823 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:51,824 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 20:14:51,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1778359795, now seen corresponding path program 1 times [2022-02-23 20:14:51,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:51,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577538336] [2022-02-23 20:14:51,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:51,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:52,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:52,334 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 20:14:52,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:52,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577538336] [2022-02-23 20:14:52,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577538336] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:52,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:52,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:52,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876033420] [2022-02-23 20:14:52,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:52,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:52,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:52,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:52,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:52,366 INFO L87 Difference]: Start difference. First operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 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 9.2) 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 20:14:54,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:55,575 INFO L93 Difference]: Finished difference Result 302 states and 507 transitions. [2022-02-23 20:14:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:55,577 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 20:14:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:55,584 INFO L225 Difference]: With dead ends: 302 [2022-02-23 20:14:55,584 INFO L226 Difference]: Without dead ends: 276 [2022-02-23 20:14:55,585 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 20:14:55,587 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 168 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:55,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 511 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:14:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-02-23 20:14:55,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 190. [2022-02-23 20:14:55,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6216216216216217) internal successors, (300), 185 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 304 transitions. [2022-02-23 20:14:55,619 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 304 transitions. Word has length 50 [2022-02-23 20:14:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:55,619 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 304 transitions. [2022-02-23 20:14:55,619 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 20:14:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 304 transitions. [2022-02-23 20:14:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-23 20:14:55,621 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:55,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:55,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:14:55,621 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:55,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:55,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1617675272, now seen corresponding path program 1 times [2022-02-23 20:14:55,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:55,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604017403] [2022-02-23 20:14:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:55,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:55,720 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 20:14:55,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:55,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604017403] [2022-02-23 20:14:55,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604017403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:55,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:55,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:55,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277814890] [2022-02-23 20:14:55,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:55,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:55,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:55,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:55,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:55,722 INFO L87 Difference]: Start difference. First operand 190 states and 304 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:58,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:00,261 WARN L534 Checker$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 20:15:00,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:00,636 INFO L93 Difference]: Finished difference Result 218 states and 344 transitions. [2022-02-23 20:15:00,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:00,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-02-23 20:15:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:00,638 INFO L225 Difference]: With dead ends: 218 [2022-02-23 20:15:00,638 INFO L226 Difference]: Without dead ends: 218 [2022-02-23 20:15:00,638 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 20:15:00,639 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 22 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:00,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 529 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:15:00,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-02-23 20:15:00,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2022-02-23 20:15:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6275510204081634) internal successors, (319), 196 states have internal predecessors, (319), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:00,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 323 transitions. [2022-02-23 20:15:00,647 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 323 transitions. Word has length 51 [2022-02-23 20:15:00,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:00,647 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 323 transitions. [2022-02-23 20:15:00,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 323 transitions. [2022-02-23 20:15:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:15:00,649 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:00,649 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:00,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 20:15:00,649 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:00,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1924351144, now seen corresponding path program 1 times [2022-02-23 20:15:00,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:00,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197399741] [2022-02-23 20:15:00,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:00,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:00,748 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 20:15:00,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:00,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197399741] [2022-02-23 20:15:00,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197399741] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:00,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:00,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:00,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531974459] [2022-02-23 20:15:00,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:00,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:00,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:00,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:00,750 INFO L87 Difference]: Start difference. First operand 201 states and 323 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 20:15:02,053 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 20:15:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:03,478 INFO L93 Difference]: Finished difference Result 218 states and 343 transitions. [2022-02-23 20:15:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:03,479 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 20:15:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:03,480 INFO L225 Difference]: With dead ends: 218 [2022-02-23 20:15:03,480 INFO L226 Difference]: Without dead ends: 218 [2022-02-23 20:15:03,480 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 20:15:03,481 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 24 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:03,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 531 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-23 20:15:03,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-02-23 20:15:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2022-02-23 20:15:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6224489795918366) internal successors, (318), 196 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 20:15:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 322 transitions. [2022-02-23 20:15:03,489 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 322 transitions. Word has length 64 [2022-02-23 20:15:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:03,491 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 322 transitions. [2022-02-23 20:15:03,491 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 20:15:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 322 transitions. [2022-02-23 20:15:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:03,497 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:03,497 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:03,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 20:15:03,497 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:03,498 INFO L85 PathProgramCache]: Analyzing trace with hash -332973682, now seen corresponding path program 1 times [2022-02-23 20:15:03,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:03,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106047111] [2022-02-23 20:15:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:03,626 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 20:15:03,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:03,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106047111] [2022-02-23 20:15:03,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106047111] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:03,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:03,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:03,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367250949] [2022-02-23 20:15:03,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:03,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:03,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:03,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:03,629 INFO L87 Difference]: Start difference. First operand 201 states and 322 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 20:15:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:06,115 INFO L93 Difference]: Finished difference Result 217 states and 341 transitions. [2022-02-23 20:15:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:06,115 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 20:15:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:06,116 INFO L225 Difference]: With dead ends: 217 [2022-02-23 20:15:06,116 INFO L226 Difference]: Without dead ends: 217 [2022-02-23 20:15:06,116 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 20:15:06,117 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 28 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:06,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 533 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 20:15:06,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-23 20:15:06,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 201. [2022-02-23 20:15:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.6173469387755102) internal successors, (317), 196 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 20:15:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 321 transitions. [2022-02-23 20:15:06,127 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 321 transitions. Word has length 65 [2022-02-23 20:15:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:06,127 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 321 transitions. [2022-02-23 20:15:06,127 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 20:15:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 321 transitions. [2022-02-23 20:15:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:06,128 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:06,128 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:06,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 20:15:06,129 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash 628847982, now seen corresponding path program 1 times [2022-02-23 20:15:06,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:06,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115774799] [2022-02-23 20:15:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:06,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:06,289 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 20:15:06,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:06,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115774799] [2022-02-23 20:15:06,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115774799] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:06,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:06,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:06,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537258470] [2022-02-23 20:15:06,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:06,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:06,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:06,293 INFO L87 Difference]: Start difference. First operand 201 states and 321 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 20:15:07,592 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 20:15:08,769 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 20:15:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:10,421 INFO L93 Difference]: Finished difference Result 326 states and 516 transitions. [2022-02-23 20:15:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:10,422 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 20:15:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:10,423 INFO L225 Difference]: With dead ends: 326 [2022-02-23 20:15:10,423 INFO L226 Difference]: Without dead ends: 326 [2022-02-23 20:15:10,423 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 20:15:10,424 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:10,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 392 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:15:10,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-02-23 20:15:10,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 213. [2022-02-23 20:15:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.6009615384615385) internal successors, (333), 208 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 337 transitions. [2022-02-23 20:15:10,430 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 337 transitions. Word has length 65 [2022-02-23 20:15:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:10,430 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 337 transitions. [2022-02-23 20:15:10,430 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 20:15:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 337 transitions. [2022-02-23 20:15:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:10,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:10,431 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:10,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 20:15:10,431 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:10,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:10,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2078408402, now seen corresponding path program 1 times [2022-02-23 20:15:10,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:10,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465689713] [2022-02-23 20:15:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:10,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:10,517 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 20:15:10,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:10,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465689713] [2022-02-23 20:15:10,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465689713] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:10,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:10,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:10,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152529465] [2022-02-23 20:15:10,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:10,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:10,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:10,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:10,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:10,518 INFO L87 Difference]: Start difference. First operand 213 states and 337 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:12,602 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 20:15:14,130 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 20:15:15,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:15,082 INFO L93 Difference]: Finished difference Result 326 states and 513 transitions. [2022-02-23 20:15:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:15,082 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 20:15:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:15,084 INFO L225 Difference]: With dead ends: 326 [2022-02-23 20:15:15,084 INFO L226 Difference]: Without dead ends: 326 [2022-02-23 20:15:15,084 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 20:15:15,086 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 157 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:15,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 392 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-23 20:15:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-02-23 20:15:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 218. [2022-02-23 20:15:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 213 states have (on average 1.596244131455399) internal successors, (340), 213 states have internal predecessors, (340), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 344 transitions. [2022-02-23 20:15:15,092 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 344 transitions. Word has length 65 [2022-02-23 20:15:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:15,092 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 344 transitions. [2022-02-23 20:15:15,092 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 20:15:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 344 transitions. [2022-02-23 20:15:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:15:15,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:15,093 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:15,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 20:15:15,093 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:15,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:15,093 INFO L85 PathProgramCache]: Analyzing trace with hash 284141070, now seen corresponding path program 1 times [2022-02-23 20:15:15,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:15,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6721416] [2022-02-23 20:15:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:15,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:15,211 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 20:15:15,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:15,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6721416] [2022-02-23 20:15:15,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6721416] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:15,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:15,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:15,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365414069] [2022-02-23 20:15:15,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:15,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:15,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:15,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:15,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:15,213 INFO L87 Difference]: Start difference. First operand 218 states and 344 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 20:15:17,373 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 20:15:18,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:19,727 INFO L93 Difference]: Finished difference Result 325 states and 509 transitions. [2022-02-23 20:15:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:19,727 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 20:15:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:19,729 INFO L225 Difference]: With dead ends: 325 [2022-02-23 20:15:19,729 INFO L226 Difference]: Without dead ends: 325 [2022-02-23 20:15:19,729 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 20:15:19,729 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 155 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:19,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-23 20:15:19,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-02-23 20:15:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 219. [2022-02-23 20:15:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5841121495327102) internal successors, (339), 214 states have internal predecessors, (339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 343 transitions. [2022-02-23 20:15:19,734 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 343 transitions. Word has length 65 [2022-02-23 20:15:19,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:19,734 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 343 transitions. [2022-02-23 20:15:19,734 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 20:15:19,734 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 343 transitions. [2022-02-23 20:15:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 20:15:19,735 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:19,735 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:19,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 20:15:19,738 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:19,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:19,738 INFO L85 PathProgramCache]: Analyzing trace with hash 100134632, now seen corresponding path program 1 times [2022-02-23 20:15:19,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:19,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511518631] [2022-02-23 20:15:19,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:19,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:19,832 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 20:15:19,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:19,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511518631] [2022-02-23 20:15:19,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511518631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:19,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:19,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:19,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120172425] [2022-02-23 20:15:19,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:19,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:19,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:19,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:19,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:19,833 INFO L87 Difference]: Start difference. First operand 219 states and 343 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 20:15:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:22,063 INFO L93 Difference]: Finished difference Result 325 states and 506 transitions. [2022-02-23 20:15:22,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:22,064 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 20:15:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:22,065 INFO L225 Difference]: With dead ends: 325 [2022-02-23 20:15:22,065 INFO L226 Difference]: Without dead ends: 325 [2022-02-23 20:15:22,065 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 20:15:22,066 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:22,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 20:15:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-02-23 20:15:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 219. [2022-02-23 20:15:22,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5700934579439252) internal successors, (336), 214 states have internal predecessors, (336), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 340 transitions. [2022-02-23 20:15:22,074 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 340 transitions. Word has length 66 [2022-02-23 20:15:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:22,074 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 340 transitions. [2022-02-23 20:15:22,075 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 20:15:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 340 transitions. [2022-02-23 20:15:22,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:15:22,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:22,075 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:22,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 20:15:22,076 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:22,076 INFO L85 PathProgramCache]: Analyzing trace with hash 473246762, now seen corresponding path program 1 times [2022-02-23 20:15:22,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:22,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646479696] [2022-02-23 20:15:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:22,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:22,188 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 20:15:22,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:22,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646479696] [2022-02-23 20:15:22,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646479696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:22,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:22,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:22,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644813406] [2022-02-23 20:15:22,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:22,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:22,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:22,192 INFO L87 Difference]: Start difference. First operand 219 states and 340 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 20:15:24,121 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 20:15:25,401 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 20:15:26,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:26,451 INFO L93 Difference]: Finished difference Result 232 states and 356 transitions. [2022-02-23 20:15:26,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:26,452 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 20:15:26,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:26,452 INFO L225 Difference]: With dead ends: 232 [2022-02-23 20:15:26,453 INFO L226 Difference]: Without dead ends: 232 [2022-02-23 20:15:26,453 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 20:15:26,453 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 20 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:26,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 539 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-23 20:15:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-02-23 20:15:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219. [2022-02-23 20:15:26,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5654205607476634) internal successors, (335), 214 states have internal predecessors, (335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 339 transitions. [2022-02-23 20:15:26,457 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 339 transitions. Word has length 67 [2022-02-23 20:15:26,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:26,457 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 339 transitions. [2022-02-23 20:15:26,457 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 20:15:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 339 transitions. [2022-02-23 20:15:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:15:26,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:26,458 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:26,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 20:15:26,458 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:26,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 2063563973, now seen corresponding path program 1 times [2022-02-23 20:15:26,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:26,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591307833] [2022-02-23 20:15:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:26,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:26,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:26,538 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 20:15:26,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:26,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591307833] [2022-02-23 20:15:26,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591307833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:26,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:26,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:26,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630720119] [2022-02-23 20:15:26,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:26,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:26,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:26,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:26,539 INFO L87 Difference]: Start difference. First operand 219 states and 339 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:29,069 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 20:15:29,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:29,364 INFO L93 Difference]: Finished difference Result 222 states and 342 transitions. [2022-02-23 20:15:29,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:29,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-23 20:15:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:29,366 INFO L225 Difference]: With dead ends: 222 [2022-02-23 20:15:29,366 INFO L226 Difference]: Without dead ends: 222 [2022-02-23 20:15:29,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:29,366 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 11 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:29,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 553 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-23 20:15:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-02-23 20:15:29,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2022-02-23 20:15:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.560747663551402) internal successors, (334), 214 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 338 transitions. [2022-02-23 20:15:29,370 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 338 transitions. Word has length 68 [2022-02-23 20:15:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:29,371 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 338 transitions. [2022-02-23 20:15:29,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:29,372 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 338 transitions. [2022-02-23 20:15:29,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:15:29,372 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:29,372 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:29,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 20:15:29,372 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:29,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:29,373 INFO L85 PathProgramCache]: Analyzing trace with hash 37532662, now seen corresponding path program 1 times [2022-02-23 20:15:29,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:29,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154199177] [2022-02-23 20:15:29,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:29,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:29,510 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 20:15:29,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:29,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154199177] [2022-02-23 20:15:29,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154199177] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:29,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:29,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:29,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225284431] [2022-02-23 20:15:29,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:29,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:29,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:29,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:29,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:29,511 INFO L87 Difference]: Start difference. First operand 219 states and 338 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:30,546 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 20:15:33,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:33,223 INFO L93 Difference]: Finished difference Result 325 states and 503 transitions. [2022-02-23 20:15:33,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:33,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-23 20:15:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:33,225 INFO L225 Difference]: With dead ends: 325 [2022-02-23 20:15:33,225 INFO L226 Difference]: Without dead ends: 325 [2022-02-23 20:15:33,225 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 20:15:33,226 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 132 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:33,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 416 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-23 20:15:33,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-02-23 20:15:33,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 241. [2022-02-23 20:15:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.597457627118644) internal successors, (377), 236 states have internal predecessors, (377), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 381 transitions. [2022-02-23 20:15:33,231 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 381 transitions. Word has length 68 [2022-02-23 20:15:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:33,232 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 381 transitions. [2022-02-23 20:15:33,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 381 transitions. [2022-02-23 20:15:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-23 20:15:33,233 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:33,233 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:33,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 20:15:33,233 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:33,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:33,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1986857855, now seen corresponding path program 1 times [2022-02-23 20:15:33,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:33,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758078044] [2022-02-23 20:15:33,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:33,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:33,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-23 20:15:33,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:33,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758078044] [2022-02-23 20:15:33,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758078044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:33,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:33,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:33,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146647662] [2022-02-23 20:15:33,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:33,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:33,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:33,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:33,344 INFO L87 Difference]: Start difference. First operand 241 states and 381 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:36,308 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 20:15:37,370 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 20:15:37,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:37,739 INFO L93 Difference]: Finished difference Result 283 states and 441 transitions. [2022-02-23 20:15:37,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:37,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-02-23 20:15:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:37,741 INFO L225 Difference]: With dead ends: 283 [2022-02-23 20:15:37,741 INFO L226 Difference]: Without dead ends: 283 [2022-02-23 20:15:37,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:37,741 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 30 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:37,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 553 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 411 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-23 20:15:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-02-23 20:15:37,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 263. [2022-02-23 20:15:37,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.5930232558139534) internal successors, (411), 258 states have internal predecessors, (411), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:37,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 415 transitions. [2022-02-23 20:15:37,746 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 415 transitions. Word has length 96 [2022-02-23 20:15:37,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:37,747 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 415 transitions. [2022-02-23 20:15:37,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:37,747 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 415 transitions. [2022-02-23 20:15:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-23 20:15:37,748 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:37,748 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:37,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 20:15:37,748 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:37,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:37,748 INFO L85 PathProgramCache]: Analyzing trace with hash -67257851, now seen corresponding path program 1 times [2022-02-23 20:15:37,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:37,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703994871] [2022-02-23 20:15:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:37,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:15:37,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:37,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703994871] [2022-02-23 20:15:37,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703994871] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:37,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:37,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:37,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095915988] [2022-02-23 20:15:37,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:37,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:37,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:37,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:37,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:37,845 INFO L87 Difference]: Start difference. First operand 263 states and 415 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 20:15:40,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:41,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:41,332 INFO L93 Difference]: Finished difference Result 385 states and 601 transitions. [2022-02-23 20:15:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:41,333 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 109 [2022-02-23 20:15:41,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:41,334 INFO L225 Difference]: With dead ends: 385 [2022-02-23 20:15:41,334 INFO L226 Difference]: Without dead ends: 385 [2022-02-23 20:15:41,334 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 20:15:41,335 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 155 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:41,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 660 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-23 20:15:41,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-23 20:15:41,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 279. [2022-02-23 20:15:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 274 states have (on average 1.5802919708029197) internal successors, (433), 274 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 437 transitions. [2022-02-23 20:15:41,339 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 437 transitions. Word has length 109 [2022-02-23 20:15:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:41,339 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 437 transitions. [2022-02-23 20:15:41,339 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 20:15:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 437 transitions. [2022-02-23 20:15:41,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-23 20:15:41,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:41,340 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:41,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 20:15:41,340 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:41,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:41,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1890503815, now seen corresponding path program 1 times [2022-02-23 20:15:41,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:41,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456461958] [2022-02-23 20:15:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:41,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:41,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-23 20:15:41,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:41,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456461958] [2022-02-23 20:15:41,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456461958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:41,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:41,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:41,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125463853] [2022-02-23 20:15:41,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:41,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:41,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:41,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:41,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:41,426 INFO L87 Difference]: Start difference. First operand 279 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:44,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:44,955 INFO L93 Difference]: Finished difference Result 292 states and 452 transitions. [2022-02-23 20:15:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:44,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-23 20:15:44,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:44,957 INFO L225 Difference]: With dead ends: 292 [2022-02-23 20:15:44,957 INFO L226 Difference]: Without dead ends: 292 [2022-02-23 20:15:44,957 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 20:15:44,957 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 20 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:44,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 618 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-23 20:15:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-02-23 20:15:44,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 279. [2022-02-23 20:15:44,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 274 states have (on average 1.5766423357664234) internal successors, (432), 274 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:44,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 436 transitions. [2022-02-23 20:15:44,961 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 436 transitions. Word has length 110 [2022-02-23 20:15:44,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:44,961 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 436 transitions. [2022-02-23 20:15:44,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:44,962 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 436 transitions. [2022-02-23 20:15:44,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-23 20:15:44,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:44,962 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:44,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 20:15:44,963 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:44,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:44,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1574692822, now seen corresponding path program 1 times [2022-02-23 20:15:44,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:44,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794389691] [2022-02-23 20:15:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:44,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-23 20:15:45,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:45,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794389691] [2022-02-23 20:15:45,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794389691] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:45,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:45,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:15:45,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369240950] [2022-02-23 20:15:45,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:45,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:15:45,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:15:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:45,096 INFO L87 Difference]: Start difference. First operand 279 states and 436 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:48,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:48,025 INFO L93 Difference]: Finished difference Result 288 states and 447 transitions. [2022-02-23 20:15:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 20:15:48,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-23 20:15:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:48,026 INFO L225 Difference]: With dead ends: 288 [2022-02-23 20:15:48,026 INFO L226 Difference]: Without dead ends: 288 [2022-02-23 20:15:48,026 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 20:15:48,027 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 3 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:48,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 697 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-23 20:15:48,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-02-23 20:15:48,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-02-23 20:15:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5653710247349824) internal successors, (443), 283 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 447 transitions. [2022-02-23 20:15:48,031 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 447 transitions. Word has length 111 [2022-02-23 20:15:48,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:48,031 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 447 transitions. [2022-02-23 20:15:48,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:48,031 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 447 transitions. [2022-02-23 20:15:48,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-23 20:15:48,032 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:48,032 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:48,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 20:15:48,032 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:48,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:48,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1663078770, now seen corresponding path program 1 times [2022-02-23 20:15:48,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:48,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103278629] [2022-02-23 20:15:48,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:48,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:15:48,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:48,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103278629] [2022-02-23 20:15:48,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103278629] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:48,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:48,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:48,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597804568] [2022-02-23 20:15:48,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:48,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:48,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:48,116 INFO L87 Difference]: Start difference. First operand 288 states and 447 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:49,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:51,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:52,495 WARN L534 Checker$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 20:15:53,951 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 20:15:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:54,410 INFO L93 Difference]: Finished difference Result 381 states and 576 transitions. [2022-02-23 20:15:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:54,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-02-23 20:15:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:54,412 INFO L225 Difference]: With dead ends: 381 [2022-02-23 20:15:54,413 INFO L226 Difference]: Without dead ends: 381 [2022-02-23 20:15:54,413 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 20:15:54,414 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 157 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:54,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 416 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-02-23 20:15:54,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-02-23 20:15:54,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 288. [2022-02-23 20:15:54,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5512367491166077) internal successors, (439), 283 states have internal predecessors, (439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 443 transitions. [2022-02-23 20:15:54,422 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 443 transitions. Word has length 113 [2022-02-23 20:15:54,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:54,422 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 443 transitions. [2022-02-23 20:15:54,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 443 transitions. [2022-02-23 20:15:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-23 20:15:54,424 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:54,424 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:54,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 20:15:54,424 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash -452187025, now seen corresponding path program 1 times [2022-02-23 20:15:54,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:54,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201278212] [2022-02-23 20:15:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:54,523 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:15:54,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:54,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201278212] [2022-02-23 20:15:54,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201278212] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:54,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:54,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:54,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10952957] [2022-02-23 20:15:54,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:54,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:54,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:54,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:54,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:54,525 INFO L87 Difference]: Start difference. First operand 288 states and 443 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:57,129 INFO L93 Difference]: Finished difference Result 305 states and 464 transitions. [2022-02-23 20:15:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:57,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-02-23 20:15:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:57,131 INFO L225 Difference]: With dead ends: 305 [2022-02-23 20:15:57,131 INFO L226 Difference]: Without dead ends: 305 [2022-02-23 20:15:57,131 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 20:15:57,131 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 33 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:57,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 559 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-02-23 20:15:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-23 20:15:57,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 288. [2022-02-23 20:15:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.547703180212014) internal successors, (438), 283 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:57,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 442 transitions. [2022-02-23 20:15:57,135 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 442 transitions. Word has length 114 [2022-02-23 20:15:57,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:57,136 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 442 transitions. [2022-02-23 20:15:57,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:57,136 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 442 transitions. [2022-02-23 20:15:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-23 20:15:57,136 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:57,137 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:57,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 20:15:57,137 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1883754976, now seen corresponding path program 1 times [2022-02-23 20:15:57,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:57,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422858786] [2022-02-23 20:15:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:57,228 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 20:15:57,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:57,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422858786] [2022-02-23 20:15:57,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422858786] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:57,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:57,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:57,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763825444] [2022-02-23 20:15:57,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:57,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:57,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:57,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:57,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:57,230 INFO L87 Difference]: Start difference. First operand 288 states and 442 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 20:15:59,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:00,823 INFO L93 Difference]: Finished difference Result 396 states and 603 transitions. [2022-02-23 20:16:00,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:00,824 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 118 [2022-02-23 20:16:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:00,825 INFO L225 Difference]: With dead ends: 396 [2022-02-23 20:16:00,825 INFO L226 Difference]: Without dead ends: 396 [2022-02-23 20:16:00,825 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 20:16:00,826 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 96 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:00,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 553 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-23 20:16:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-02-23 20:16:00,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 322. [2022-02-23 20:16:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.5520504731861198) internal successors, (492), 317 states have internal predecessors, (492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 496 transitions. [2022-02-23 20:16:00,830 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 496 transitions. Word has length 118 [2022-02-23 20:16:00,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:00,830 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 496 transitions. [2022-02-23 20:16:00,831 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 20:16:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 496 transitions. [2022-02-23 20:16:00,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-23 20:16:00,831 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:00,831 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:00,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 20:16:00,832 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:00,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:00,832 INFO L85 PathProgramCache]: Analyzing trace with hash -929526081, now seen corresponding path program 1 times [2022-02-23 20:16:00,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:00,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642231521] [2022-02-23 20:16:00,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:00,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:00,919 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 20:16:00,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:00,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642231521] [2022-02-23 20:16:00,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642231521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:00,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:00,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:00,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545940424] [2022-02-23 20:16:00,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:00,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:00,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:00,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:00,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:00,920 INFO L87 Difference]: Start difference. First operand 322 states and 496 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 20:16:03,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:04,579 WARN L534 Checker$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 20:16:05,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:05,561 INFO L93 Difference]: Finished difference Result 491 states and 757 transitions. [2022-02-23 20:16:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:05,561 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 118 [2022-02-23 20:16:05,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:05,563 INFO L225 Difference]: With dead ends: 491 [2022-02-23 20:16:05,563 INFO L226 Difference]: Without dead ends: 491 [2022-02-23 20:16:05,563 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 20:16:05,563 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 137 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:05,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 428 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:16:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-02-23 20:16:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 352. [2022-02-23 20:16:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 347 states have (on average 1.5619596541786744) internal successors, (542), 347 states have internal predecessors, (542), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 546 transitions. [2022-02-23 20:16:05,568 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 546 transitions. Word has length 118 [2022-02-23 20:16:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:05,568 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 546 transitions. [2022-02-23 20:16:05,568 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 20:16:05,569 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 546 transitions. [2022-02-23 20:16:05,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-23 20:16:05,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:05,569 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, 1] [2022-02-23 20:16:05,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 20:16:05,570 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 638819263, now seen corresponding path program 1 times [2022-02-23 20:16:05,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:05,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568848885] [2022-02-23 20:16:05,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:05,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:05,720 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 20:16:05,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:05,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568848885] [2022-02-23 20:16:05,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568848885] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:05,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:05,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:05,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019129449] [2022-02-23 20:16:05,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:05,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:05,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:05,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:05,723 INFO L87 Difference]: Start difference. First operand 352 states and 546 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:08,963 INFO L93 Difference]: Finished difference Result 435 states and 661 transitions. [2022-02-23 20:16:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:08,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-23 20:16:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:08,965 INFO L225 Difference]: With dead ends: 435 [2022-02-23 20:16:08,965 INFO L226 Difference]: Without dead ends: 435 [2022-02-23 20:16:08,965 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 20:16:08,965 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:08,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:16:08,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-02-23 20:16:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 352. [2022-02-23 20:16:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 347 states have (on average 1.5446685878962536) internal successors, (536), 347 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 540 transitions. [2022-02-23 20:16:08,970 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 540 transitions. Word has length 123 [2022-02-23 20:16:08,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:08,970 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 540 transitions. [2022-02-23 20:16:08,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:08,971 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 540 transitions. [2022-02-23 20:16:08,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-23 20:16:08,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:08,972 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:08,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 20:16:08,972 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:08,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:08,972 INFO L85 PathProgramCache]: Analyzing trace with hash -194713814, now seen corresponding path program 1 times [2022-02-23 20:16:08,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:08,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005656413] [2022-02-23 20:16:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:09,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:09,074 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 20:16:09,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:09,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005656413] [2022-02-23 20:16:09,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005656413] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:09,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:09,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:09,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156571449] [2022-02-23 20:16:09,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:09,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:09,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:09,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:09,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:09,075 INFO L87 Difference]: Start difference. First operand 352 states and 540 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 20:16:10,822 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 20:16:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:11,938 INFO L93 Difference]: Finished difference Result 450 states and 687 transitions. [2022-02-23 20:16:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:11,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-23 20:16:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:11,940 INFO L225 Difference]: With dead ends: 450 [2022-02-23 20:16:11,940 INFO L226 Difference]: Without dead ends: 450 [2022-02-23 20:16:11,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:11,941 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 89 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:11,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 531 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-23 20:16:11,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-23 20:16:11,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 391. [2022-02-23 20:16:11,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 386 states have (on average 1.549222797927461) internal successors, (598), 386 states have internal predecessors, (598), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 602 transitions. [2022-02-23 20:16:11,946 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 602 transitions. Word has length 124 [2022-02-23 20:16:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:11,946 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 602 transitions. [2022-02-23 20:16:11,946 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 20:16:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 602 transitions. [2022-02-23 20:16:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-23 20:16:11,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:11,947 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:11,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 20:16:11,947 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:11,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:11,947 INFO L85 PathProgramCache]: Analyzing trace with hash 914101385, now seen corresponding path program 1 times [2022-02-23 20:16:11,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:11,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911705691] [2022-02-23 20:16:11,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:11,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:12,035 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 20:16:12,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:12,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911705691] [2022-02-23 20:16:12,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911705691] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:12,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:12,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:12,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640597200] [2022-02-23 20:16:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:12,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:12,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:12,036 INFO L87 Difference]: Start difference. First operand 391 states and 602 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 20:16:14,553 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 20:16:15,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:15,640 INFO L93 Difference]: Finished difference Result 514 states and 786 transitions. [2022-02-23 20:16:15,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:15,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-23 20:16:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:15,641 INFO L225 Difference]: With dead ends: 514 [2022-02-23 20:16:15,642 INFO L226 Difference]: Without dead ends: 514 [2022-02-23 20:16:15,642 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 20:16:15,642 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 132 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:15,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 394 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-02-23 20:16:15,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-02-23 20:16:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 389. [2022-02-23 20:16:15,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5494791666666667) internal successors, (595), 384 states have internal predecessors, (595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 599 transitions. [2022-02-23 20:16:15,647 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 599 transitions. Word has length 124 [2022-02-23 20:16:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:15,647 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 599 transitions. [2022-02-23 20:16:15,650 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 20:16:15,650 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 599 transitions. [2022-02-23 20:16:15,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-23 20:16:15,651 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:15,651 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:15,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 20:16:15,652 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:15,652 INFO L85 PathProgramCache]: Analyzing trace with hash 615512470, now seen corresponding path program 1 times [2022-02-23 20:16:15,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:15,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333588387] [2022-02-23 20:16:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:15,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:15,753 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 20:16:15,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:15,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333588387] [2022-02-23 20:16:15,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333588387] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:15,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:15,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:15,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038060597] [2022-02-23 20:16:15,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:15,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:15,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:15,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:15,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:15,754 INFO L87 Difference]: Start difference. First operand 389 states and 599 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:17,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:17,798 INFO L93 Difference]: Finished difference Result 472 states and 718 transitions. [2022-02-23 20:16:17,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:17,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-23 20:16:17,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:17,799 INFO L225 Difference]: With dead ends: 472 [2022-02-23 20:16:17,800 INFO L226 Difference]: Without dead ends: 472 [2022-02-23 20:16:17,800 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 20:16:17,800 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 131 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:17,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 394 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-23 20:16:17,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-02-23 20:16:17,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 389. [2022-02-23 20:16:17,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5442708333333333) internal successors, (593), 384 states have internal predecessors, (593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:17,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 597 transitions. [2022-02-23 20:16:17,805 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 597 transitions. Word has length 125 [2022-02-23 20:16:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:17,805 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 597 transitions. [2022-02-23 20:16:17,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:17,806 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 597 transitions. [2022-02-23 20:16:17,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-23 20:16:17,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:17,806 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, 1] [2022-02-23 20:16:17,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 20:16:17,806 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:17,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:17,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1069531404, now seen corresponding path program 1 times [2022-02-23 20:16:17,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:17,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198450054] [2022-02-23 20:16:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:17,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:17,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:17,894 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 20:16:17,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:17,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198450054] [2022-02-23 20:16:17,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198450054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:17,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:17,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:17,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529104325] [2022-02-23 20:16:17,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:17,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:17,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:17,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:17,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:17,896 INFO L87 Difference]: Start difference. First operand 389 states and 597 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 20:16:20,681 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 20:16:22,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:22,250 INFO L93 Difference]: Finished difference Result 476 states and 725 transitions. [2022-02-23 20:16:22,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:22,250 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 132 [2022-02-23 20:16:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:22,251 INFO L225 Difference]: With dead ends: 476 [2022-02-23 20:16:22,252 INFO L226 Difference]: Without dead ends: 476 [2022-02-23 20:16:22,252 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 20:16:22,252 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 68 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:22,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 531 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-23 20:16:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-02-23 20:16:22,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 432. [2022-02-23 20:16:22,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 427 states have (on average 1.5433255269320842) internal successors, (659), 427 states have internal predecessors, (659), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:22,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 663 transitions. [2022-02-23 20:16:22,283 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 663 transitions. Word has length 132 [2022-02-23 20:16:22,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:22,283 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 663 transitions. [2022-02-23 20:16:22,283 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 20:16:22,283 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 663 transitions. [2022-02-23 20:16:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-23 20:16:22,284 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:22,284 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, 1] [2022-02-23 20:16:22,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 20:16:22,285 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:22,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:22,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2017517717, now seen corresponding path program 1 times [2022-02-23 20:16:22,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:22,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052184828] [2022-02-23 20:16:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:22,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-23 20:16:22,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:22,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052184828] [2022-02-23 20:16:22,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052184828] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:22,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:22,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:22,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545930915] [2022-02-23 20:16:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:22,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:22,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:22,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:22,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:22,378 INFO L87 Difference]: Start difference. First operand 432 states and 663 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 20:16:23,849 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 20:16:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:25,782 INFO L93 Difference]: Finished difference Result 478 states and 728 transitions. [2022-02-23 20:16:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:25,784 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 132 [2022-02-23 20:16:25,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:25,794 INFO L225 Difference]: With dead ends: 478 [2022-02-23 20:16:25,794 INFO L226 Difference]: Without dead ends: 478 [2022-02-23 20:16:25,794 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 20:16:25,797 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 35 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:25,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 649 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-23 20:16:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-02-23 20:16:25,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 456. [2022-02-23 20:16:25,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5388026607538803) internal successors, (694), 451 states have internal predecessors, (694), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 698 transitions. [2022-02-23 20:16:25,803 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 698 transitions. Word has length 132 [2022-02-23 20:16:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:25,803 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 698 transitions. [2022-02-23 20:16:25,803 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 20:16:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 698 transitions. [2022-02-23 20:16:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-23 20:16:25,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:25,804 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, 1] [2022-02-23 20:16:25,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 20:16:25,804 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:25,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:25,805 INFO L85 PathProgramCache]: Analyzing trace with hash -33221834, now seen corresponding path program 1 times [2022-02-23 20:16:25,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:25,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883781293] [2022-02-23 20:16:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:25,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:25,926 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 20:16:25,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:25,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883781293] [2022-02-23 20:16:25,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883781293] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:25,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:25,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:25,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567278245] [2022-02-23 20:16:25,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:25,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:25,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:25,927 INFO L87 Difference]: Start difference. First operand 456 states and 698 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 20:16:27,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:29,013 WARN L534 Checker$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 20:16:30,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:30,481 INFO L93 Difference]: Finished difference Result 579 states and 876 transitions. [2022-02-23 20:16:30,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:30,482 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 20:16:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:30,484 INFO L225 Difference]: With dead ends: 579 [2022-02-23 20:16:30,484 INFO L226 Difference]: Without dead ends: 579 [2022-02-23 20:16:30,484 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 20:16:30,484 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 138 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:30,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-23 20:16:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-02-23 20:16:30,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 486. [2022-02-23 20:16:30,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.5301455301455302) internal successors, (736), 481 states have internal predecessors, (736), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:30,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 740 transitions. [2022-02-23 20:16:30,490 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 740 transitions. Word has length 145 [2022-02-23 20:16:30,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:30,490 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 740 transitions. [2022-02-23 20:16:30,490 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 20:16:30,490 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 740 transitions. [2022-02-23 20:16:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-23 20:16:30,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:30,496 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, 1] [2022-02-23 20:16:30,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 20:16:30,497 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:30,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash 946421911, now seen corresponding path program 1 times [2022-02-23 20:16:30,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:30,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39288774] [2022-02-23 20:16:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:30,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:30,619 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 20:16:30,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:30,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39288774] [2022-02-23 20:16:30,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39288774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:30,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:30,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:30,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772256133] [2022-02-23 20:16:30,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:30,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:30,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:30,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:30,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:30,621 INFO L87 Difference]: Start difference. First operand 486 states and 740 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:32,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:34,155 WARN L534 Checker$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 20:16:35,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:35,104 INFO L93 Difference]: Finished difference Result 528 states and 799 transitions. [2022-02-23 20:16:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:35,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-23 20:16:35,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:35,107 INFO L225 Difference]: With dead ends: 528 [2022-02-23 20:16:35,107 INFO L226 Difference]: Without dead ends: 528 [2022-02-23 20:16:35,109 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 20:16:35,109 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 75 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:35,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 535 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-23 20:16:35,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-02-23 20:16:35,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 486. [2022-02-23 20:16:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.528066528066528) internal successors, (735), 481 states have internal predecessors, (735), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 739 transitions. [2022-02-23 20:16:35,121 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 739 transitions. Word has length 146 [2022-02-23 20:16:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:35,121 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 739 transitions. [2022-02-23 20:16:35,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 739 transitions. [2022-02-23 20:16:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-23 20:16:35,122 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:35,122 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:35,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 20:16:35,122 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash 459164131, now seen corresponding path program 1 times [2022-02-23 20:16:35,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:35,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509587943] [2022-02-23 20:16:35,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:35,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:35,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-23 20:16:35,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:35,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509587943] [2022-02-23 20:16:35,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509587943] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:35,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:35,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:35,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217538164] [2022-02-23 20:16:35,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:35,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:35,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:35,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:35,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:35,228 INFO L87 Difference]: Start difference. First operand 486 states and 739 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:38,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:39,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:39,252 INFO L93 Difference]: Finished difference Result 559 states and 838 transitions. [2022-02-23 20:16:39,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:39,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-23 20:16:39,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:39,254 INFO L225 Difference]: With dead ends: 559 [2022-02-23 20:16:39,254 INFO L226 Difference]: Without dead ends: 559 [2022-02-23 20:16:39,254 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 20:16:39,255 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 146 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:39,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 438 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:16:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-02-23 20:16:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 486. [2022-02-23 20:16:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.5093555093555093) internal successors, (726), 481 states have internal predecessors, (726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 730 transitions. [2022-02-23 20:16:39,261 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 730 transitions. Word has length 148 [2022-02-23 20:16:39,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:39,261 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 730 transitions. [2022-02-23 20:16:39,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:39,261 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 730 transitions. [2022-02-23 20:16:39,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-23 20:16:39,262 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:39,262 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:39,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 20:16:39,262 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash -249706458, now seen corresponding path program 1 times [2022-02-23 20:16:39,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:39,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029466577] [2022-02-23 20:16:39,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:39,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:39,401 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 20:16:39,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:39,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029466577] [2022-02-23 20:16:39,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029466577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:39,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:39,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:39,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250376008] [2022-02-23 20:16:39,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:39,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:39,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:39,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:39,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:39,403 INFO L87 Difference]: Start difference. First operand 486 states and 730 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 20:16:40,431 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 20:16:42,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:42,429 INFO L93 Difference]: Finished difference Result 518 states and 776 transitions. [2022-02-23 20:16:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:42,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-23 20:16:42,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:42,431 INFO L225 Difference]: With dead ends: 518 [2022-02-23 20:16:42,431 INFO L226 Difference]: Without dead ends: 518 [2022-02-23 20:16:42,431 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 20:16:42,438 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 69 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:42,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 549 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-23 20:16:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-02-23 20:16:42,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 486. [2022-02-23 20:16:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.5072765072765073) internal successors, (725), 481 states have internal predecessors, (725), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 729 transitions. [2022-02-23 20:16:42,465 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 729 transitions. Word has length 149 [2022-02-23 20:16:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:42,465 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 729 transitions. [2022-02-23 20:16:42,465 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 20:16:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 729 transitions. [2022-02-23 20:16:42,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-23 20:16:42,466 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:42,466 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:42,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 20:16:42,467 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:42,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1359087931, now seen corresponding path program 1 times [2022-02-23 20:16:42,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:42,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10021921] [2022-02-23 20:16:42,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:42,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:42,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:42,556 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 20:16:42,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:42,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10021921] [2022-02-23 20:16:42,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10021921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:42,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:42,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:42,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263206411] [2022-02-23 20:16:42,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:42,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:42,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:42,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:42,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:42,558 INFO L87 Difference]: Start difference. First operand 486 states and 729 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 20:16:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:46,134 INFO L93 Difference]: Finished difference Result 559 states and 830 transitions. [2022-02-23 20:16:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:46,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-02-23 20:16:46,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:46,136 INFO L225 Difference]: With dead ends: 559 [2022-02-23 20:16:46,136 INFO L226 Difference]: Without dead ends: 559 [2022-02-23 20:16:46,136 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 20:16:46,137 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 131 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:46,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-23 20:16:46,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-02-23 20:16:46,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 486. [2022-02-23 20:16:46,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.4927234927234927) internal successors, (718), 481 states have internal predecessors, (718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 722 transitions. [2022-02-23 20:16:46,142 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 722 transitions. Word has length 150 [2022-02-23 20:16:46,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:46,142 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 722 transitions. [2022-02-23 20:16:46,142 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 20:16:46,142 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 722 transitions. [2022-02-23 20:16:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-23 20:16:46,143 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:46,143 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:46,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 20:16:46,144 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:46,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash 617322954, now seen corresponding path program 1 times [2022-02-23 20:16:46,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:46,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300083820] [2022-02-23 20:16:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:46,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:16:46,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:46,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300083820] [2022-02-23 20:16:46,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300083820] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:46,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:46,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:46,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769972783] [2022-02-23 20:16:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:46,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:46,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:46,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:46,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:46,257 INFO L87 Difference]: Start difference. First operand 486 states and 722 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 20:16:50,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:50,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:50,514 INFO L93 Difference]: Finished difference Result 559 states and 823 transitions. [2022-02-23 20:16:50,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:50,514 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 154 [2022-02-23 20:16:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:50,516 INFO L225 Difference]: With dead ends: 559 [2022-02-23 20:16:50,516 INFO L226 Difference]: Without dead ends: 559 [2022-02-23 20:16:50,516 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 20:16:50,516 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 135 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:50,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 428 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-23 20:16:50,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-02-23 20:16:50,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 486. [2022-02-23 20:16:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 481 states have (on average 1.478170478170478) internal successors, (711), 481 states have internal predecessors, (711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:50,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 715 transitions. [2022-02-23 20:16:50,522 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 715 transitions. Word has length 154 [2022-02-23 20:16:50,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:50,522 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 715 transitions. [2022-02-23 20:16:50,522 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 20:16:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 715 transitions. [2022-02-23 20:16:50,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-23 20:16:50,523 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:50,523 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:50,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 20:16:50,524 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:50,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:50,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1841801495, now seen corresponding path program 1 times [2022-02-23 20:16:50,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:50,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628913310] [2022-02-23 20:16:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:50,616 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 20:16:50,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:50,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628913310] [2022-02-23 20:16:50,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628913310] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:50,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:50,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:16:50,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164764075] [2022-02-23 20:16:50,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:50,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:16:50,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:50,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:16:50,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:16:50,618 INFO L87 Difference]: Start difference. First operand 486 states and 715 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:53,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:53,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:53,821 INFO L93 Difference]: Finished difference Result 941 states and 1376 transitions. [2022-02-23 20:16:53,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:16:53,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-23 20:16:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:53,832 INFO L225 Difference]: With dead ends: 941 [2022-02-23 20:16:53,832 INFO L226 Difference]: Without dead ends: 941 [2022-02-23 20:16:53,832 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 20:16:53,832 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:53,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 451 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:16:53,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-02-23 20:16:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2022-02-23 20:16:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.467880085653105) internal successors, (1371), 934 states have internal predecessors, (1371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:53,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1375 transitions. [2022-02-23 20:16:53,848 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1375 transitions. Word has length 154 [2022-02-23 20:16:53,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:53,849 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1375 transitions. [2022-02-23 20:16:53,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:53,849 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1375 transitions. [2022-02-23 20:16:53,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-23 20:16:53,850 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:53,850 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:53,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 20:16:53,851 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:53,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:53,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1466583112, now seen corresponding path program 1 times [2022-02-23 20:16:53,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:53,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934341712] [2022-02-23 20:16:53,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:53,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:53,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:53,927 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 20:16:53,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:53,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934341712] [2022-02-23 20:16:53,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934341712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:53,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:53,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:16:53,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869078086] [2022-02-23 20:16:53,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:53,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:16:53,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:53,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:16:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:16:53,928 INFO L87 Difference]: Start difference. First operand 939 states and 1375 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 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 20:16:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:55,227 INFO L93 Difference]: Finished difference Result 966 states and 1410 transitions. [2022-02-23 20:16:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:16:55,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 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 154 [2022-02-23 20:16:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:55,229 INFO L225 Difference]: With dead ends: 966 [2022-02-23 20:16:55,229 INFO L226 Difference]: Without dead ends: 966 [2022-02-23 20:16:55,229 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 20:16:55,230 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:55,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 433 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-23 20:16:55,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-02-23 20:16:55,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-02-23 20:16:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4630593132154006) internal successors, (1406), 961 states have internal predecessors, (1406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:55,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1410 transitions. [2022-02-23 20:16:55,238 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1410 transitions. Word has length 154 [2022-02-23 20:16:55,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:55,239 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1410 transitions. [2022-02-23 20:16:55,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 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 20:16:55,239 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1410 transitions. [2022-02-23 20:16:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-23 20:16:55,240 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:55,240 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:55,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 20:16:55,241 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:55,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:55,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1174197287, now seen corresponding path program 1 times [2022-02-23 20:16:55,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:55,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168625635] [2022-02-23 20:16:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:55,331 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 20:16:55,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:55,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168625635] [2022-02-23 20:16:55,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168625635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:55,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:55,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:16:55,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550036650] [2022-02-23 20:16:55,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:55,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:16:55,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:16:55,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:16:55,332 INFO L87 Difference]: Start difference. First operand 966 states and 1410 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:56,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:56,881 INFO L93 Difference]: Finished difference Result 968 states and 1412 transitions. [2022-02-23 20:16:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:16:56,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-23 20:16:56,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:56,884 INFO L225 Difference]: With dead ends: 968 [2022-02-23 20:16:56,884 INFO L226 Difference]: Without dead ends: 968 [2022-02-23 20:16:56,884 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 20:16:56,885 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:56,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 412 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-23 20:16:56,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-02-23 20:16:56,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-02-23 20:16:56,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.462097611630322) internal successors, (1408), 963 states have internal predecessors, (1408), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1412 transitions. [2022-02-23 20:16:56,894 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1412 transitions. Word has length 154 [2022-02-23 20:16:56,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:56,894 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1412 transitions. [2022-02-23 20:16:56,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:56,894 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1412 transitions. [2022-02-23 20:16:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-23 20:16:56,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:56,896 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, 1] [2022-02-23 20:16:56,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 20:16:56,896 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:56,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash 320492784, now seen corresponding path program 1 times [2022-02-23 20:16:56,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:56,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66615132] [2022-02-23 20:16:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:56,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:56,999 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 20:16:56,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:56,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66615132] [2022-02-23 20:16:56,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66615132] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:56,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:56,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:16:56,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192733133] [2022-02-23 20:16:57,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:57,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:16:57,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:57,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:16:57,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:57,000 INFO L87 Difference]: Start difference. First operand 968 states and 1412 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:59,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:01,699 WARN L534 Checker$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 20:17:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:02,292 INFO L93 Difference]: Finished difference Result 1503 states and 2186 transitions. [2022-02-23 20:17:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 20:17:02,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-23 20:17:02,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:02,296 INFO L225 Difference]: With dead ends: 1503 [2022-02-23 20:17:02,296 INFO L226 Difference]: Without dead ends: 1503 [2022-02-23 20:17:02,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:17:02,296 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 95 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:02,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 865 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 761 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-23 20:17:02,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-02-23 20:17:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1484. [2022-02-23 20:17:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1479 states have (on average 1.4631507775524002) internal successors, (2164), 1479 states have internal predecessors, (2164), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 2168 transitions. [2022-02-23 20:17:02,341 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 2168 transitions. Word has length 156 [2022-02-23 20:17:02,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:02,341 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 2168 transitions. [2022-02-23 20:17:02,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:02,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 2168 transitions. [2022-02-23 20:17:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-23 20:17:02,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:02,344 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:02,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 20:17:02,344 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:02,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1157233019, now seen corresponding path program 1 times [2022-02-23 20:17:02,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:02,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077457668] [2022-02-23 20:17:02,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:02,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:02,440 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 20:17:02,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:02,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077457668] [2022-02-23 20:17:02,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077457668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:02,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:02,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:02,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111352464] [2022-02-23 20:17:02,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:02,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:02,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:02,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:02,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:02,442 INFO L87 Difference]: Start difference. First operand 1484 states and 2168 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:04,752 INFO L93 Difference]: Finished difference Result 1888 states and 2734 transitions. [2022-02-23 20:17:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:04,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-23 20:17:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:04,757 INFO L225 Difference]: With dead ends: 1888 [2022-02-23 20:17:04,757 INFO L226 Difference]: Without dead ends: 1888 [2022-02-23 20:17:04,758 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 20:17:04,758 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 124 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:04,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:17:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2022-02-23 20:17:04,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1624. [2022-02-23 20:17:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1619 states have (on average 1.458307597282273) internal successors, (2361), 1619 states have internal predecessors, (2361), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:04,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2365 transitions. [2022-02-23 20:17:04,774 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2365 transitions. Word has length 157 [2022-02-23 20:17:04,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:04,774 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 2365 transitions. [2022-02-23 20:17:04,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2365 transitions. [2022-02-23 20:17:04,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-23 20:17:04,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:04,776 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:04,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 20:17:04,777 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:04,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:04,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1087901617, now seen corresponding path program 1 times [2022-02-23 20:17:04,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:04,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490499467] [2022-02-23 20:17:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:04,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:04,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:17:04,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:04,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490499467] [2022-02-23 20:17:04,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490499467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:04,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:04,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:04,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024332144] [2022-02-23 20:17:04,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:04,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:04,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:04,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:04,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:04,875 INFO L87 Difference]: Start difference. First operand 1624 states and 2365 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 20:17:06,562 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 20:17:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:07,906 INFO L93 Difference]: Finished difference Result 1684 states and 2440 transitions. [2022-02-23 20:17:07,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:07,907 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 157 [2022-02-23 20:17:07,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:07,937 INFO L225 Difference]: With dead ends: 1684 [2022-02-23 20:17:07,937 INFO L226 Difference]: Without dead ends: 1684 [2022-02-23 20:17:07,937 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 20:17:07,938 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 53 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:07,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 575 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-23 20:17:07,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2022-02-23 20:17:07,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1624. [2022-02-23 20:17:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1619 states have (on average 1.4564546016059297) internal successors, (2358), 1619 states have internal predecessors, (2358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2362 transitions. [2022-02-23 20:17:07,952 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2362 transitions. Word has length 157 [2022-02-23 20:17:07,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:07,952 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 2362 transitions. [2022-02-23 20:17:07,952 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 20:17:07,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2362 transitions. [2022-02-23 20:17:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-23 20:17:07,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:07,954 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:07,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 20:17:07,954 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:07,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1144606736, now seen corresponding path program 1 times [2022-02-23 20:17:07,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:07,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195650636] [2022-02-23 20:17:07,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:07,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:08,049 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 20:17:08,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:08,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195650636] [2022-02-23 20:17:08,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195650636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:08,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:08,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:08,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309721427] [2022-02-23 20:17:08,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:08,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:08,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:08,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:08,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:08,051 INFO L87 Difference]: Start difference. First operand 1624 states and 2362 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 20:17:11,028 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 20:17:13,049 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 20:17:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:14,046 INFO L93 Difference]: Finished difference Result 1766 states and 2544 transitions. [2022-02-23 20:17:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:14,046 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 158 [2022-02-23 20:17:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:14,050 INFO L225 Difference]: With dead ends: 1766 [2022-02-23 20:17:14,050 INFO L226 Difference]: Without dead ends: 1766 [2022-02-23 20:17:14,050 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 20:17:14,051 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 123 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:14,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 428 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:17:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2022-02-23 20:17:14,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1622. [2022-02-23 20:17:14,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1617 states have (on average 1.4477427334570192) internal successors, (2341), 1617 states have internal predecessors, (2341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:14,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2345 transitions. [2022-02-23 20:17:14,065 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2345 transitions. Word has length 158 [2022-02-23 20:17:14,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:14,065 INFO L470 AbstractCegarLoop]: Abstraction has 1622 states and 2345 transitions. [2022-02-23 20:17:14,065 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 20:17:14,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2345 transitions. [2022-02-23 20:17:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-02-23 20:17:14,067 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:14,067 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, 1] [2022-02-23 20:17:14,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 20:17:14,067 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:14,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1962708150, now seen corresponding path program 1 times [2022-02-23 20:17:14,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:14,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975202110] [2022-02-23 20:17:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:14,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:14,184 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 20:17:14,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:14,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975202110] [2022-02-23 20:17:14,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975202110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:14,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:14,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:14,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394062840] [2022-02-23 20:17:14,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:14,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:14,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:14,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:14,185 INFO L87 Difference]: Start difference. First operand 1622 states and 2345 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 20:17:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:17,086 INFO L93 Difference]: Finished difference Result 2020 states and 2884 transitions. [2022-02-23 20:17:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:17,087 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 20:17:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:17,091 INFO L225 Difference]: With dead ends: 2020 [2022-02-23 20:17:17,091 INFO L226 Difference]: Without dead ends: 2020 [2022-02-23 20:17:17,091 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 20:17:17,092 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 132 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:17,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 506 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-23 20:17:17,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2022-02-23 20:17:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1726. [2022-02-23 20:17:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1721 states have (on average 1.4328878558977338) internal successors, (2466), 1721 states have internal predecessors, (2466), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2470 transitions. [2022-02-23 20:17:17,106 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2470 transitions. Word has length 162 [2022-02-23 20:17:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:17,107 INFO L470 AbstractCegarLoop]: Abstraction has 1726 states and 2470 transitions. [2022-02-23 20:17:17,107 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 20:17:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2470 transitions. [2022-02-23 20:17:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-23 20:17:17,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:17,109 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, 1] [2022-02-23 20:17:17,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 20:17:17,109 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:17,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:17,110 INFO L85 PathProgramCache]: Analyzing trace with hash -144990711, now seen corresponding path program 1 times [2022-02-23 20:17:17,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:17,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980844102] [2022-02-23 20:17:17,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:17,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:17,219 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 20:17:17,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:17,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980844102] [2022-02-23 20:17:17,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980844102] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:17,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:17,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:17,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531174205] [2022-02-23 20:17:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:17,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:17,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:17,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:17,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:17,221 INFO L87 Difference]: Start difference. First operand 1726 states and 2470 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:19,375 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 20:17:21,029 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 20:17:21,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:21,432 INFO L93 Difference]: Finished difference Result 1868 states and 2640 transitions. [2022-02-23 20:17:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-02-23 20:17:21,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:21,438 INFO L225 Difference]: With dead ends: 1868 [2022-02-23 20:17:21,438 INFO L226 Difference]: Without dead ends: 1868 [2022-02-23 20:17:21,438 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 20:17:21,439 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 131 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:21,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 428 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-23 20:17:21,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2022-02-23 20:17:21,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1726. [2022-02-23 20:17:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1721 states have (on average 1.4171993027309704) internal successors, (2439), 1721 states have internal predecessors, (2439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2443 transitions. [2022-02-23 20:17:21,454 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2443 transitions. Word has length 163 [2022-02-23 20:17:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:21,454 INFO L470 AbstractCegarLoop]: Abstraction has 1726 states and 2443 transitions. [2022-02-23 20:17:21,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2443 transitions. [2022-02-23 20:17:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-23 20:17:21,477 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:21,477 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, 1, 1] [2022-02-23 20:17:21,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-23 20:17:21,477 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:21,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:21,477 INFO L85 PathProgramCache]: Analyzing trace with hash -816086858, now seen corresponding path program 1 times [2022-02-23 20:17:21,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:21,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038453826] [2022-02-23 20:17:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:21,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:21,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:21,596 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 20:17:21,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:21,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038453826] [2022-02-23 20:17:21,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038453826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:21,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:21,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:21,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828464396] [2022-02-23 20:17:21,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:21,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:21,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:21,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:21,598 INFO L87 Difference]: Start difference. First operand 1726 states and 2443 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:23,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:25,780 INFO L93 Difference]: Finished difference Result 1771 states and 2498 transitions. [2022-02-23 20:17:25,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:25,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-02-23 20:17:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:25,783 INFO L225 Difference]: With dead ends: 1771 [2022-02-23 20:17:25,783 INFO L226 Difference]: Without dead ends: 1771 [2022-02-23 20:17:25,783 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 20:17:25,783 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 37 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:25,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 581 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-23 20:17:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-02-23 20:17:25,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1726. [2022-02-23 20:17:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1721 states have (on average 1.4154561301568855) internal successors, (2436), 1721 states have internal predecessors, (2436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2440 transitions. [2022-02-23 20:17:25,797 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2440 transitions. Word has length 166 [2022-02-23 20:17:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:25,797 INFO L470 AbstractCegarLoop]: Abstraction has 1726 states and 2440 transitions. [2022-02-23 20:17:25,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2440 transitions. [2022-02-23 20:17:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-23 20:17:25,799 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:25,799 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:17:25,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 20:17:25,799 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash 611576736, now seen corresponding path program 1 times [2022-02-23 20:17:25,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:25,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712564385] [2022-02-23 20:17:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:25,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:25,914 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 20:17:25,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:25,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712564385] [2022-02-23 20:17:25,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712564385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:25,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:25,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:25,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295838941] [2022-02-23 20:17:25,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:25,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:25,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:25,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:25,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:25,915 INFO L87 Difference]: Start difference. First operand 1726 states and 2440 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:28,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:28,840 INFO L93 Difference]: Finished difference Result 1753 states and 2470 transitions. [2022-02-23 20:17:28,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:28,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-02-23 20:17:28,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:28,843 INFO L225 Difference]: With dead ends: 1753 [2022-02-23 20:17:28,843 INFO L226 Difference]: Without dead ends: 1753 [2022-02-23 20:17:28,844 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 20:17:28,844 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 28 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:28,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 581 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-23 20:17:28,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2022-02-23 20:17:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1715. [2022-02-23 20:17:28,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1710 states have (on average 1.416374269005848) internal successors, (2422), 1710 states have internal predecessors, (2422), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:28,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2426 transitions. [2022-02-23 20:17:28,859 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2426 transitions. Word has length 167 [2022-02-23 20:17:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:28,859 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 2426 transitions. [2022-02-23 20:17:28,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2426 transitions. [2022-02-23 20:17:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-23 20:17:28,860 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:28,861 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:28,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 20:17:28,861 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:28,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:28,861 INFO L85 PathProgramCache]: Analyzing trace with hash 539217844, now seen corresponding path program 1 times [2022-02-23 20:17:28,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:28,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428006734] [2022-02-23 20:17:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-02-23 20:17:28,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:28,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428006734] [2022-02-23 20:17:28,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428006734] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:28,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:28,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:17:28,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376065071] [2022-02-23 20:17:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:28,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:28,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:28,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:17:28,970 INFO L87 Difference]: Start difference. First operand 1715 states and 2426 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 20:17:31,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:33,851 WARN L534 Checker$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 20:17:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:34,197 INFO L93 Difference]: Finished difference Result 1767 states and 2488 transitions. [2022-02-23 20:17:34,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:34,198 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 168 [2022-02-23 20:17:34,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:34,200 INFO L225 Difference]: With dead ends: 1767 [2022-02-23 20:17:34,200 INFO L226 Difference]: Without dead ends: 1767 [2022-02-23 20:17:34,200 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 20:17:34,200 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 29 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:34,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 626 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-02-23 20:17:34,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2022-02-23 20:17:34,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1715. [2022-02-23 20:17:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1710 states have (on average 1.4140350877192982) internal successors, (2418), 1710 states have internal predecessors, (2418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2422 transitions. [2022-02-23 20:17:34,227 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2422 transitions. Word has length 168 [2022-02-23 20:17:34,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:34,227 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 2422 transitions. [2022-02-23 20:17:34,227 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 20:17:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2422 transitions. [2022-02-23 20:17:34,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-02-23 20:17:34,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:34,229 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:34,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 20:17:34,229 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:34,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1707771303, now seen corresponding path program 1 times [2022-02-23 20:17:34,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:34,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004758600] [2022-02-23 20:17:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:34,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-23 20:17:34,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:34,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004758600] [2022-02-23 20:17:34,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004758600] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:17:34,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:17:34,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 20:17:34,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070162715] [2022-02-23 20:17:34,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:34,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:17:34,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:34,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:17:34,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-23 20:17:34,568 INFO L87 Difference]: Start difference. First operand 1715 states and 2422 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 20:17:36,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:38,191 WARN L534 Checker$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 20:17:40,209 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 20:17:42,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:42,036 INFO L93 Difference]: Finished difference Result 1723 states and 2432 transitions. [2022-02-23 20:17:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:17:42,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 177 [2022-02-23 20:17:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:42,038 INFO L225 Difference]: With dead ends: 1723 [2022-02-23 20:17:42,038 INFO L226 Difference]: Without dead ends: 1715 [2022-02-23 20:17:42,039 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 20:17:42,039 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:42,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 922 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 458 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-02-23 20:17:42,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2022-02-23 20:17:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2022-02-23 20:17:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1710 states have (on average 1.4134502923976608) internal successors, (2417), 1710 states have internal predecessors, (2417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2421 transitions. [2022-02-23 20:17:42,054 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2421 transitions. Word has length 177 [2022-02-23 20:17:42,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:42,054 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 2421 transitions. [2022-02-23 20:17:42,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 20:17:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2421 transitions. [2022-02-23 20:17:42,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-02-23 20:17:42,056 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:42,056 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:42,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-23 20:17:42,056 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:42,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash -115415960, now seen corresponding path program 1 times [2022-02-23 20:17:42,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:42,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316446863] [2022-02-23 20:17:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:17:42,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:42,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316446863] [2022-02-23 20:17:42,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316446863] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:17:42,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710664538] [2022-02-23 20:17:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:42,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:17:42,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:17:42,872 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 20:17:42,891 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 20:17:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:43,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 206 conjunts are in the unsatisfiable core [2022-02-23 20:17:43,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:17:43,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-02-23 20:17:43,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:43,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:44,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10709 treesize of output 1662