/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.12.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:29:45,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:29:45,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:29:45,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:29:45,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:29:45,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:29:45,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:29:45,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:29:45,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:29:45,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:29:45,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:29:45,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:29:45,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:29:45,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:29:45,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:29:45,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:29:45,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:29:45,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:29:45,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:29:45,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:29:45,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:29:45,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:29:45,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:29:45,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:29:45,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:29:45,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:29:45,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:29:45,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:29:45,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:29:45,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:29:45,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:29:45,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:29:45,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:29:45,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:29:45,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:29:45,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:29:45,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:29:45,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:29:45,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:29:45,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:29:45,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:29:45,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:29:45,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:29:45,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:29:45,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:29:45,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:29:45,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:29:45,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:29:45,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:29:45,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:29:45,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:29:45,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:29:45,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:29:45,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:29:45,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:29:45,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:29:45,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:29:45,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:29:45,806 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:29:45,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:29:45,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:29:45,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:29:45,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:29:45,807 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:29:45,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:29:46,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:29:46,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:29:46,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:29:46,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:29:46,088 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:29:46,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-01-31 16:29:46,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fb1fd40/b7c836d260104e458599ab28918a091e/FLAGa0514ab80 [2022-01-31 16:29:46,698 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:29:46,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-2.c [2022-01-31 16:29:46,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fb1fd40/b7c836d260104e458599ab28918a091e/FLAGa0514ab80 [2022-01-31 16:29:47,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6fb1fd40/b7c836d260104e458599ab28918a091e [2022-01-31 16:29:47,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:29:47,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:29:47,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:29:47,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:29:47,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:29:47,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1e21bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47, skipping insertion in model container [2022-01-31 16:29:47,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:29:47,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:29:47,583 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.12.i.cil-2.c[75436,75449] [2022-01-31 16:29:47,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:29:47,614 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:29:47,711 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.12.i.cil-2.c[75436,75449] [2022-01-31 16:29:47,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:29:47,725 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:29:47,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47 WrapperNode [2022-01-31 16:29:47,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:29:47,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:29:47,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:29:47,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:29:47,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:29:47,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:29:47,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:29:47,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:29:47,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (1/1) ... [2022-01-31 16:29:47,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:29:47,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:29:47,888 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) [2022-01-31 16:29:47,910 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 [2022-01-31 16:29:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:29:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:29:47,930 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:29:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 16:29:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 16:29:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:29:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:29:47,931 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 16:29:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 16:29:47,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 16:29:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:29:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:29:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:29:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:29:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 16:29:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:29:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:29:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:29:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 16:29:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:29:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 16:29:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:29:48,127 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:29:48,129 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:29:48,791 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:29:49,267 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 16:29:49,267 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 16:29:49,279 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:29:49,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:29:49,290 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:29:49,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:29:49 BoogieIcfgContainer [2022-01-31 16:29:49,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:29:49,293 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:29:49,293 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:29:49,294 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:29:49,297 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:29:49" (1/1) ... [2022-01-31 16:29:49,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:29:49 BasicIcfg [2022-01-31 16:29:49,353 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:29:49,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:29:49,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:29:49,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:29:49,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:29:47" (1/4) ... [2022-01-31 16:29:49,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a22f380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:29:49, skipping insertion in model container [2022-01-31 16:29:49,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:29:47" (2/4) ... [2022-01-31 16:29:49,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a22f380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:29:49, skipping insertion in model container [2022-01-31 16:29:49,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:29:49" (3/4) ... [2022-01-31 16:29:49,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a22f380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:29:49, skipping insertion in model container [2022-01-31 16:29:49,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:29:49" (4/4) ... [2022-01-31 16:29:49,361 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-2.cJordan [2022-01-31 16:29:49,365 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:29:49,366 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:29:49,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:29:49,422 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 [2022-01-31 16:29:49,422 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:29:49,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 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) [2022-01-31 16:29:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-31 16:29:49,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:29:49,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:29:49,467 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:29:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:29:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1539324216, now seen corresponding path program 1 times [2022-01-31 16:29:49,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:29:49,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462473595] [2022-01-31 16:29:49,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:29:49,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:29:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:49,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:29:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:29:49,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:29:49,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462473595] [2022-01-31 16:29:49,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462473595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:29:49,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:29:49,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:29:49,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934778379] [2022-01-31 16:29:49,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:29:49,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:29:49,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:29:50,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:29:50,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:29:50,031 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:29:52,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:29:52,184 INFO L93 Difference]: Finished difference Result 294 states and 491 transitions. [2022-01-31 16:29:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:29:52,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-01-31 16:29:52,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:29:52,197 INFO L225 Difference]: With dead ends: 294 [2022-01-31 16:29:52,197 INFO L226 Difference]: Without dead ends: 268 [2022-01-31 16:29:52,198 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 [2022-01-31 16:29:52,207 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 162 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:29:52,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-31 16:29:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-01-31 16:29:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 185. [2022-01-31 16:29:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 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) [2022-01-31 16:29:52,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-01-31 16:29:52,281 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 49 [2022-01-31 16:29:52,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:29:52,282 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-01-31 16:29:52,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:29:52,282 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-01-31 16:29:52,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 16:29:52,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:29:52,288 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] [2022-01-31 16:29:52,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:29:52,289 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:29:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:29:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash 503839874, now seen corresponding path program 1 times [2022-01-31 16:29:52,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:29:52,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517041612] [2022-01-31 16:29:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:29:52,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:29:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:29:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:29:52,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:29:52,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517041612] [2022-01-31 16:29:52,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517041612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:29:52,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:29:52,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:29:52,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339474026] [2022-01-31 16:29:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:29:52,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:29:52,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:29:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:29:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:29:52,463 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:29:54,005 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 [] [2022-01-31 16:29:55,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:56,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:29:56,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:29:56,825 INFO L93 Difference]: Finished difference Result 213 states and 334 transitions. [2022-01-31 16:29:56,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:29:56,826 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 [2022-01-31 16:29:56,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:29:56,828 INFO L225 Difference]: With dead ends: 213 [2022-01-31 16:29:56,828 INFO L226 Difference]: Without dead ends: 213 [2022-01-31 16:29:56,828 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 [2022-01-31 16:29:56,829 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:29:56,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:29:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-01-31 16:29:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-01-31 16:29:56,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.617801047120419) internal successors, (309), 191 states have internal predecessors, (309), 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) [2022-01-31 16:29:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 313 transitions. [2022-01-31 16:29:56,837 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 313 transitions. Word has length 50 [2022-01-31 16:29:56,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:29:56,838 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 313 transitions. [2022-01-31 16:29:56,838 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) [2022-01-31 16:29:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 313 transitions. [2022-01-31 16:29:56,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 16:29:56,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:29:56,839 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:29:56,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:29:56,840 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:29:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:29:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1142284189, now seen corresponding path program 1 times [2022-01-31 16:29:56,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:29:56,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353564394] [2022-01-31 16:29:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:29:56,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:29:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:29:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:29:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:29:57,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:29:57,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353564394] [2022-01-31 16:29:57,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353564394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:29:57,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:29:57,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:29:57,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224609582] [2022-01-31 16:29:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:29:57,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:29:57,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:29:57,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:29:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:29:57,029 INFO L87 Difference]: Start difference. First operand 196 states and 313 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:29:58,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:00,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:02,697 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 [] [2022-01-31 16:30:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:03,859 INFO L93 Difference]: Finished difference Result 213 states and 333 transitions. [2022-01-31 16:30:03,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:03,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-01-31 16:30:03,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:03,861 INFO L225 Difference]: With dead ends: 213 [2022-01-31 16:30:03,861 INFO L226 Difference]: Without dead ends: 213 [2022-01-31 16:30:03,862 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 [2022-01-31 16:30:03,863 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:03,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 368 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-01-31 16:30:03,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-01-31 16:30:03,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-01-31 16:30:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.612565445026178) internal successors, (308), 191 states have internal predecessors, (308), 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) [2022-01-31 16:30:03,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2022-01-31 16:30:03,870 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 63 [2022-01-31 16:30:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:03,871 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2022-01-31 16:30:03,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:03,871 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2022-01-31 16:30:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:30:03,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:03,873 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:03,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:30:03,873 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:03,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:03,874 INFO L85 PathProgramCache]: Analyzing trace with hash -745471524, now seen corresponding path program 1 times [2022-01-31 16:30:03,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:03,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599824914] [2022-01-31 16:30:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:03,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:04,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:04,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:04,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599824914] [2022-01-31 16:30:04,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599824914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:04,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:04,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:04,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394853585] [2022-01-31 16:30:04,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:04,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:04,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:04,032 INFO L87 Difference]: Start difference. First operand 196 states and 312 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) [2022-01-31 16:30:05,707 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 [] [2022-01-31 16:30:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:07,602 INFO L93 Difference]: Finished difference Result 212 states and 331 transitions. [2022-01-31 16:30:07,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:07,603 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 [2022-01-31 16:30:07,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:07,604 INFO L225 Difference]: With dead ends: 212 [2022-01-31 16:30:07,604 INFO L226 Difference]: Without dead ends: 212 [2022-01-31 16:30:07,605 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 [2022-01-31 16:30:07,606 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:07,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:30:07,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-01-31 16:30:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2022-01-31 16:30:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.6073298429319371) internal successors, (307), 191 states have internal predecessors, (307), 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) [2022-01-31 16:30:07,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 311 transitions. [2022-01-31 16:30:07,612 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 311 transitions. Word has length 64 [2022-01-31 16:30:07,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:07,612 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 311 transitions. [2022-01-31 16:30:07,613 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) [2022-01-31 16:30:07,613 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 311 transitions. [2022-01-31 16:30:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:30:07,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:07,614 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:07,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:30:07,614 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:07,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2099918340, now seen corresponding path program 1 times [2022-01-31 16:30:07,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:07,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013072670] [2022-01-31 16:30:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:07,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:07,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:07,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:07,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013072670] [2022-01-31 16:30:07,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013072670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:07,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:07,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:07,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664953967] [2022-01-31 16:30:07,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:07,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:07,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:07,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:07,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:07,754 INFO L87 Difference]: Start difference. First operand 196 states and 311 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) [2022-01-31 16:30:10,231 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 [] [2022-01-31 16:30:11,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:11,395 INFO L93 Difference]: Finished difference Result 318 states and 500 transitions. [2022-01-31 16:30:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:11,396 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 [2022-01-31 16:30:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:11,398 INFO L225 Difference]: With dead ends: 318 [2022-01-31 16:30:11,398 INFO L226 Difference]: Without dead ends: 318 [2022-01-31 16:30:11,398 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 [2022-01-31 16:30:11,399 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 157 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:11,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:30:11,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-01-31 16:30:11,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 208. [2022-01-31 16:30:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-01-31 16:30:11,405 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 64 [2022-01-31 16:30:11,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:11,406 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-01-31 16:30:11,406 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) [2022-01-31 16:30:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-01-31 16:30:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:30:11,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:11,407 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:11,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:30:11,407 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:11,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:11,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1137886780, now seen corresponding path program 1 times [2022-01-31 16:30:11,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:11,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273477430] [2022-01-31 16:30:11,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:11,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:11,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:11,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:11,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273477430] [2022-01-31 16:30:11,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273477430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:11,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:11,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:11,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115886529] [2022-01-31 16:30:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:11,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:11,519 INFO L87 Difference]: Start difference. First operand 208 states and 327 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) [2022-01-31 16:30:13,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:15,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:17,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:18,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:18,071 INFO L93 Difference]: Finished difference Result 318 states and 497 transitions. [2022-01-31 16:30:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:18,072 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 [2022-01-31 16:30:18,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:18,074 INFO L225 Difference]: With dead ends: 318 [2022-01-31 16:30:18,074 INFO L226 Difference]: Without dead ends: 318 [2022-01-31 16:30:18,074 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 [2022-01-31 16:30:18,075 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:18,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 16:30:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-01-31 16:30:18,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 213. [2022-01-31 16:30:18,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5865384615384615) internal successors, (330), 208 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 334 transitions. [2022-01-31 16:30:18,081 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 334 transitions. Word has length 64 [2022-01-31 16:30:18,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:18,081 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 334 transitions. [2022-01-31 16:30:18,081 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) [2022-01-31 16:30:18,082 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 334 transitions. [2022-01-31 16:30:18,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:30:18,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:18,082 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:18,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:30:18,083 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash -171375268, now seen corresponding path program 1 times [2022-01-31 16:30:18,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:18,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793063504] [2022-01-31 16:30:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:18,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:18,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:18,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:18,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793063504] [2022-01-31 16:30:18,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793063504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:18,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:18,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:18,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140856813] [2022-01-31 16:30:18,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:18,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:18,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:18,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:18,209 INFO L87 Difference]: Start difference. First operand 213 states and 334 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) [2022-01-31 16:30:19,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:21,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:22,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:23,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:23,543 INFO L93 Difference]: Finished difference Result 317 states and 493 transitions. [2022-01-31 16:30:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:23,543 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 [2022-01-31 16:30:23,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:23,545 INFO L225 Difference]: With dead ends: 317 [2022-01-31 16:30:23,545 INFO L226 Difference]: Without dead ends: 317 [2022-01-31 16:30:23,548 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 [2022-01-31 16:30:23,551 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 149 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:23,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-01-31 16:30:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-01-31 16:30:23,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 214. [2022-01-31 16:30:23,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5741626794258374) internal successors, (329), 209 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:23,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 333 transitions. [2022-01-31 16:30:23,561 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 333 transitions. Word has length 64 [2022-01-31 16:30:23,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:23,562 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 333 transitions. [2022-01-31 16:30:23,562 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) [2022-01-31 16:30:23,562 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 333 transitions. [2022-01-31 16:30:23,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:30:23,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:23,563 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:23,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:30:23,563 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:23,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1056729597, now seen corresponding path program 1 times [2022-01-31 16:30:23,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:23,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500984176] [2022-01-31 16:30:23,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:23,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:23,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:23,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500984176] [2022-01-31 16:30:23,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500984176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:23,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:23,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:23,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210486723] [2022-01-31 16:30:23,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:23,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:23,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:23,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:23,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:23,664 INFO L87 Difference]: Start difference. First operand 214 states and 333 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) [2022-01-31 16:30:25,270 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 [] [2022-01-31 16:30:28,763 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 [] [2022-01-31 16:30:29,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:29,273 INFO L93 Difference]: Finished difference Result 317 states and 490 transitions. [2022-01-31 16:30:29,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:29,274 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 [2022-01-31 16:30:29,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:29,275 INFO L225 Difference]: With dead ends: 317 [2022-01-31 16:30:29,275 INFO L226 Difference]: Without dead ends: 317 [2022-01-31 16:30:29,276 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 [2022-01-31 16:30:29,276 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 153 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:29,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-01-31 16:30:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-01-31 16:30:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 214. [2022-01-31 16:30:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5598086124401913) internal successors, (326), 209 states have internal predecessors, (326), 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) [2022-01-31 16:30:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 330 transitions. [2022-01-31 16:30:29,283 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 330 transitions. Word has length 65 [2022-01-31 16:30:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:29,284 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 330 transitions. [2022-01-31 16:30:29,284 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) [2022-01-31 16:30:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 330 transitions. [2022-01-31 16:30:29,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 16:30:29,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:29,285 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:29,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:30:29,285 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash -577608928, now seen corresponding path program 1 times [2022-01-31 16:30:29,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88225211] [2022-01-31 16:30:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:29,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:29,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:29,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:29,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88225211] [2022-01-31 16:30:29,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88225211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:29,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:29,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:29,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309326700] [2022-01-31 16:30:29,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:29,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:29,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:29,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:29,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:29,406 INFO L87 Difference]: Start difference. First operand 214 states and 330 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) [2022-01-31 16:30:31,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:31,810 INFO L93 Difference]: Finished difference Result 227 states and 346 transitions. [2022-01-31 16:30:31,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:31,811 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 [2022-01-31 16:30:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:31,812 INFO L225 Difference]: With dead ends: 227 [2022-01-31 16:30:31,812 INFO L226 Difference]: Without dead ends: 227 [2022-01-31 16:30:31,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:30:31,813 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 20 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:31,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 509 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:30:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-01-31 16:30:31,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-01-31 16:30:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.555023923444976) internal successors, (325), 209 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 329 transitions. [2022-01-31 16:30:31,817 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 329 transitions. Word has length 66 [2022-01-31 16:30:31,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:31,818 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 329 transitions. [2022-01-31 16:30:31,818 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) [2022-01-31 16:30:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 329 transitions. [2022-01-31 16:30:31,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:30:31,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:31,819 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:31,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:30:31,819 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:31,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1915355424, now seen corresponding path program 1 times [2022-01-31 16:30:31,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:31,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132511029] [2022-01-31 16:30:31,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:31,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:31,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:31,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132511029] [2022-01-31 16:30:31,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132511029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:31,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:31,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:31,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374975978] [2022-01-31 16:30:31,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:31,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:31,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:31,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:31,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:31,964 INFO L87 Difference]: Start difference. First operand 214 states and 329 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) [2022-01-31 16:30:33,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:35,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:37,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:38,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:39,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:39,234 INFO L93 Difference]: Finished difference Result 217 states and 332 transitions. [2022-01-31 16:30:39,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:39,235 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 [2022-01-31 16:30:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:39,236 INFO L225 Difference]: With dead ends: 217 [2022-01-31 16:30:39,236 INFO L226 Difference]: Without dead ends: 217 [2022-01-31 16:30:39,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:30:39,237 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 11 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:39,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 523 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-01-31 16:30:39,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-01-31 16:30:39,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2022-01-31 16:30:39,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5502392344497609) internal successors, (324), 209 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 328 transitions. [2022-01-31 16:30:39,242 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 328 transitions. Word has length 67 [2022-01-31 16:30:39,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:39,242 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 328 transitions. [2022-01-31 16:30:39,242 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) [2022-01-31 16:30:39,242 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 328 transitions. [2022-01-31 16:30:39,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:30:39,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:39,243 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:39,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:30:39,244 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:39,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1572904911, now seen corresponding path program 1 times [2022-01-31 16:30:39,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:39,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705315821] [2022-01-31 16:30:39,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:39,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:39,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:30:39,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:39,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705315821] [2022-01-31 16:30:39,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705315821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:39,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:39,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:39,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523239425] [2022-01-31 16:30:39,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:39,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:39,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:39,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:39,365 INFO L87 Difference]: Start difference. First operand 214 states and 328 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) [2022-01-31 16:30:41,082 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 [] [2022-01-31 16:30:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:42,934 INFO L93 Difference]: Finished difference Result 317 states and 487 transitions. [2022-01-31 16:30:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:42,935 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 [2022-01-31 16:30:42,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:42,937 INFO L225 Difference]: With dead ends: 317 [2022-01-31 16:30:42,937 INFO L226 Difference]: Without dead ends: 317 [2022-01-31 16:30:42,938 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 [2022-01-31 16:30:42,938 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 126 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:42,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 382 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:30:42,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-01-31 16:30:42,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 236. [2022-01-31 16:30:42,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5887445887445888) internal successors, (367), 231 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:42,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 371 transitions. [2022-01-31 16:30:42,944 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 371 transitions. Word has length 67 [2022-01-31 16:30:42,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:42,945 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 371 transitions. [2022-01-31 16:30:42,945 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) [2022-01-31 16:30:42,945 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 371 transitions. [2022-01-31 16:30:42,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-31 16:30:42,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:42,946 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:42,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:30:42,946 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:42,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:42,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1467131228, now seen corresponding path program 1 times [2022-01-31 16:30:42,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:42,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851750417] [2022-01-31 16:30:42,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:42,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:43,079 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-31 16:30:43,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:43,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851750417] [2022-01-31 16:30:43,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851750417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:43,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:43,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:43,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545071989] [2022-01-31 16:30:43,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:43,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:43,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:43,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:43,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:43,081 INFO L87 Difference]: Start difference. First operand 236 states and 371 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:44,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:46,823 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 [] [2022-01-31 16:30:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:47,571 INFO L93 Difference]: Finished difference Result 278 states and 431 transitions. [2022-01-31 16:30:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:47,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-01-31 16:30:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:47,573 INFO L225 Difference]: With dead ends: 278 [2022-01-31 16:30:47,573 INFO L226 Difference]: Without dead ends: 278 [2022-01-31 16:30:47,573 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 [2022-01-31 16:30:47,574 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 30 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:47,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:30:47,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-01-31 16:30:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 258. [2022-01-31 16:30:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5849802371541502) internal successors, (401), 253 states have internal predecessors, (401), 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) [2022-01-31 16:30:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 405 transitions. [2022-01-31 16:30:47,579 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 405 transitions. Word has length 95 [2022-01-31 16:30:47,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:47,580 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 405 transitions. [2022-01-31 16:30:47,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 405 transitions. [2022-01-31 16:30:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-31 16:30:47,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:47,582 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:47,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:30:47,582 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:47,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:47,583 INFO L85 PathProgramCache]: Analyzing trace with hash -831278907, now seen corresponding path program 1 times [2022-01-31 16:30:47,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:47,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130945813] [2022-01-31 16:30:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:47,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:47,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:47,717 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:30:47,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:47,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130945813] [2022-01-31 16:30:47,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130945813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:47,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:47,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:47,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392995255] [2022-01-31 16:30:47,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:47,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:47,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:47,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:47,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:47,719 INFO L87 Difference]: Start difference. First operand 258 states and 405 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:50,546 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 [] [2022-01-31 16:30:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:52,575 INFO L93 Difference]: Finished difference Result 377 states and 585 transitions. [2022-01-31 16:30:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:52,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-01-31 16:30:52,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:52,578 INFO L225 Difference]: With dead ends: 377 [2022-01-31 16:30:52,578 INFO L226 Difference]: Without dead ends: 377 [2022-01-31 16:30:52,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:30:52,578 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 149 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:52,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 618 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 605 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 16:30:52,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-01-31 16:30:52,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 274. [2022-01-31 16:30:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5724907063197027) internal successors, (423), 269 states have internal predecessors, (423), 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) [2022-01-31 16:30:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 427 transitions. [2022-01-31 16:30:52,584 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 427 transitions. Word has length 108 [2022-01-31 16:30:52,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:52,585 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 427 transitions. [2022-01-31 16:30:52,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:52,585 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 427 transitions. [2022-01-31 16:30:52,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-31 16:30:52,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:52,586 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:30:52,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:30:52,586 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:52,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:52,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1395619266, now seen corresponding path program 1 times [2022-01-31 16:30:52,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:52,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812308652] [2022-01-31 16:30:52,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:52,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:52,698 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-31 16:30:52,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:52,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812308652] [2022-01-31 16:30:52,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812308652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:52,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:52,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:30:52,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017600529] [2022-01-31 16:30:52,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:52,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:30:52,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:52,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:30:52,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:30:52,700 INFO L87 Difference]: Start difference. First operand 274 states and 427 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:54,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:56,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:30:58,423 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 [] [2022-01-31 16:30:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:30:59,288 INFO L93 Difference]: Finished difference Result 287 states and 442 transitions. [2022-01-31 16:30:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:30:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-01-31 16:30:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:30:59,290 INFO L225 Difference]: With dead ends: 287 [2022-01-31 16:30:59,291 INFO L226 Difference]: Without dead ends: 287 [2022-01-31 16:30:59,291 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 [2022-01-31 16:30:59,291 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 20 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:30:59,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 588 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-01-31 16:30:59,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-01-31 16:30:59,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 274. [2022-01-31 16:30:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5687732342007434) internal successors, (422), 269 states have internal predecessors, (422), 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) [2022-01-31 16:30:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 426 transitions. [2022-01-31 16:30:59,297 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 426 transitions. Word has length 109 [2022-01-31 16:30:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:30:59,297 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 426 transitions. [2022-01-31 16:30:59,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:30:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 426 transitions. [2022-01-31 16:30:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 16:30:59,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:30:59,298 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] [2022-01-31 16:30:59,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:30:59,299 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:30:59,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:30:59,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1978728096, now seen corresponding path program 1 times [2022-01-31 16:30:59,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:30:59,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424949037] [2022-01-31 16:30:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:30:59,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:30:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:30:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:30:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-31 16:30:59,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:30:59,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424949037] [2022-01-31 16:30:59,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424949037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:30:59,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:30:59,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:30:59,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091940339] [2022-01-31 16:30:59,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:30:59,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:30:59,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:30:59,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:30:59,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:30:59,421 INFO L87 Difference]: Start difference. First operand 274 states and 426 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:00,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:02,713 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 [] [2022-01-31 16:31:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:04,809 INFO L93 Difference]: Finished difference Result 283 states and 437 transitions. [2022-01-31 16:31:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:31:04,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-01-31 16:31:04,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:04,811 INFO L225 Difference]: With dead ends: 283 [2022-01-31 16:31:04,811 INFO L226 Difference]: Without dead ends: 283 [2022-01-31 16:31:04,811 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 [2022-01-31 16:31:04,811 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:04,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-01-31 16:31:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-01-31 16:31:04,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-01-31 16:31:04,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 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) [2022-01-31 16:31:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-01-31 16:31:04,817 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 110 [2022-01-31 16:31:04,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:04,817 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-01-31 16:31:04,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:04,818 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-01-31 16:31:04,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 16:31:04,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:04,819 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:04,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:31:04,819 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:04,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:04,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1803452964, now seen corresponding path program 1 times [2022-01-31 16:31:04,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:04,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022896515] [2022-01-31 16:31:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:04,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:04,924 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:31:04,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:04,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022896515] [2022-01-31 16:31:04,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022896515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:04,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:04,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:04,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113722078] [2022-01-31 16:31:04,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:04,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:04,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:04,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:04,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:04,925 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:08,229 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 [] [2022-01-31 16:31:09,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:09,394 INFO L93 Difference]: Finished difference Result 373 states and 560 transitions. [2022-01-31 16:31:09,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:09,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-01-31 16:31:09,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:09,396 INFO L225 Difference]: With dead ends: 373 [2022-01-31 16:31:09,396 INFO L226 Difference]: Without dead ends: 373 [2022-01-31 16:31:09,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:31:09,397 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 151 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:09,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 382 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:31:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-01-31 16:31:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 283. [2022-01-31 16:31:09,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5431654676258992) internal successors, (429), 278 states have internal predecessors, (429), 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) [2022-01-31 16:31:09,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 433 transitions. [2022-01-31 16:31:09,404 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 433 transitions. Word has length 112 [2022-01-31 16:31:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:09,404 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 433 transitions. [2022-01-31 16:31:09,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:09,405 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 433 transitions. [2022-01-31 16:31:09,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-31 16:31:09,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:09,406 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:09,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:31:09,406 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:09,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:09,407 INFO L85 PathProgramCache]: Analyzing trace with hash 329100950, now seen corresponding path program 1 times [2022-01-31 16:31:09,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:09,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504002434] [2022-01-31 16:31:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:09,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:09,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:31:09,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:09,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504002434] [2022-01-31 16:31:09,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504002434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:09,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:09,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:09,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398322053] [2022-01-31 16:31:09,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:09,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:09,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:09,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:09,523 INFO L87 Difference]: Start difference. First operand 283 states and 433 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) [2022-01-31 16:31:12,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:14,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:15,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:16,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:16,199 INFO L93 Difference]: Finished difference Result 300 states and 454 transitions. [2022-01-31 16:31:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:16,199 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 [2022-01-31 16:31:16,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:16,201 INFO L225 Difference]: With dead ends: 300 [2022-01-31 16:31:16,201 INFO L226 Difference]: Without dead ends: 300 [2022-01-31 16:31:16,201 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 [2022-01-31 16:31:16,202 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 33 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:16,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-01-31 16:31:16,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-01-31 16:31:16,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-01-31 16:31:16,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.539568345323741) internal successors, (428), 278 states have internal predecessors, (428), 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) [2022-01-31 16:31:16,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 432 transitions. [2022-01-31 16:31:16,207 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 432 transitions. Word has length 113 [2022-01-31 16:31:16,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:16,207 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 432 transitions. [2022-01-31 16:31:16,208 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) [2022-01-31 16:31:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 432 transitions. [2022-01-31 16:31:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-31 16:31:16,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:16,209 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:16,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:31:16,209 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:16,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1124427590, now seen corresponding path program 1 times [2022-01-31 16:31:16,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:16,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939415884] [2022-01-31 16:31:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:16,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:31:16,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:16,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939415884] [2022-01-31 16:31:16,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939415884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:16,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:16,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:31:16,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818458717] [2022-01-31 16:31:16,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:16,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:31:16,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:16,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:31:16,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:31:16,303 INFO L87 Difference]: Start difference. First operand 283 states and 432 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:17,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:19,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:19,521 INFO L93 Difference]: Finished difference Result 535 states and 816 transitions. [2022-01-31 16:31:19,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:31:19,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-01-31 16:31:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:19,524 INFO L225 Difference]: With dead ends: 535 [2022-01-31 16:31:19,524 INFO L226 Difference]: Without dead ends: 535 [2022-01-31 16:31:19,524 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 [2022-01-31 16:31:19,525 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 164 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:19,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 542 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 16:31:19,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-01-31 16:31:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2022-01-31 16:31:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5320754716981133) internal successors, (812), 530 states have internal predecessors, (812), 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) [2022-01-31 16:31:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 816 transitions. [2022-01-31 16:31:19,536 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 816 transitions. Word has length 117 [2022-01-31 16:31:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:19,537 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 816 transitions. [2022-01-31 16:31:19,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 816 transitions. [2022-01-31 16:31:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-31 16:31:19,538 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:19,539 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:19,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:31:19,539 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:19,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:19,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1608102917, now seen corresponding path program 1 times [2022-01-31 16:31:19,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:19,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621007180] [2022-01-31 16:31:19,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:19,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:19,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:31:19,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:19,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621007180] [2022-01-31 16:31:19,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621007180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:19,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:19,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:19,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055745174] [2022-01-31 16:31:19,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:19,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:19,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:19,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:19,693 INFO L87 Difference]: Start difference. First operand 535 states and 816 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:21,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:22,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:23,398 INFO L93 Difference]: Finished difference Result 744 states and 1118 transitions. [2022-01-31 16:31:23,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:23,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-01-31 16:31:23,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:23,401 INFO L225 Difference]: With dead ends: 744 [2022-01-31 16:31:23,402 INFO L226 Difference]: Without dead ends: 744 [2022-01-31 16:31:23,402 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 [2022-01-31 16:31:23,402 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 92 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:23,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 523 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:31:23,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-01-31 16:31:23,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 602. [2022-01-31 16:31:23,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.5393634840871022) internal successors, (919), 597 states have internal predecessors, (919), 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) [2022-01-31 16:31:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 923 transitions. [2022-01-31 16:31:23,413 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 923 transitions. Word has length 117 [2022-01-31 16:31:23,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:23,414 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 923 transitions. [2022-01-31 16:31:23,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:23,414 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 923 transitions. [2022-01-31 16:31:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-31 16:31:23,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:23,415 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:23,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:31:23,416 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:23,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1361789830, now seen corresponding path program 1 times [2022-01-31 16:31:23,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:23,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998723832] [2022-01-31 16:31:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:23,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:23,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-31 16:31:23,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:23,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998723832] [2022-01-31 16:31:23,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998723832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:23,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:23,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:23,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385992202] [2022-01-31 16:31:23,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:23,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:23,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:23,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:23,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:23,527 INFO L87 Difference]: Start difference. First operand 602 states and 923 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:25,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:26,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:28,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:28,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:28,827 INFO L93 Difference]: Finished difference Result 659 states and 1002 transitions. [2022-01-31 16:31:28,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:28,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-01-31 16:31:28,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:28,829 INFO L225 Difference]: With dead ends: 659 [2022-01-31 16:31:28,830 INFO L226 Difference]: Without dead ends: 659 [2022-01-31 16:31:28,830 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 [2022-01-31 16:31:28,830 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 36 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:28,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 621 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-01-31 16:31:28,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-01-31 16:31:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 626. [2022-01-31 16:31:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 621 states have (on average 1.537842190016103) internal successors, (955), 621 states have internal predecessors, (955), 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) [2022-01-31 16:31:28,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 959 transitions. [2022-01-31 16:31:28,841 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 959 transitions. Word has length 117 [2022-01-31 16:31:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:28,841 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 959 transitions. [2022-01-31 16:31:28,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 959 transitions. [2022-01-31 16:31:28,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-31 16:31:28,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:28,843 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:28,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:31:28,843 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:28,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2029915318, now seen corresponding path program 1 times [2022-01-31 16:31:28,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:28,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344440837] [2022-01-31 16:31:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:28,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:28,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-01-31 16:31:28,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:28,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344440837] [2022-01-31 16:31:28,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344440837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:28,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:28,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:31:28,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948652561] [2022-01-31 16:31:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:28,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:31:28,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:31:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:31:28,939 INFO L87 Difference]: Start difference. First operand 626 states and 959 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:31,624 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 [] [2022-01-31 16:31:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:32,066 INFO L93 Difference]: Finished difference Result 628 states and 961 transitions. [2022-01-31 16:31:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:31:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-01-31 16:31:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:32,069 INFO L225 Difference]: With dead ends: 628 [2022-01-31 16:31:32,069 INFO L226 Difference]: Without dead ends: 628 [2022-01-31 16:31:32,070 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 [2022-01-31 16:31:32,070 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:32,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:31:32,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-01-31 16:31:32,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-01-31 16:31:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.536115569823435) internal successors, (957), 623 states have internal predecessors, (957), 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) [2022-01-31 16:31:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 961 transitions. [2022-01-31 16:31:32,081 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 961 transitions. Word has length 122 [2022-01-31 16:31:32,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:32,081 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 961 transitions. [2022-01-31 16:31:32,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 961 transitions. [2022-01-31 16:31:32,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 16:31:32,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:32,083 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:32,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:31:32,083 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:32,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:32,083 INFO L85 PathProgramCache]: Analyzing trace with hash 467142555, now seen corresponding path program 1 times [2022-01-31 16:31:32,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:32,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663848750] [2022-01-31 16:31:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:32,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:31:32,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:32,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663848750] [2022-01-31 16:31:32,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663848750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:32,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:32,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:32,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114491526] [2022-01-31 16:31:32,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:32,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:32,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:32,203 INFO L87 Difference]: Start difference. First operand 628 states and 961 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) [2022-01-31 16:31:33,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:35,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:38,197 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 [] [2022-01-31 16:31:38,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:38,652 INFO L93 Difference]: Finished difference Result 884 states and 1329 transitions. [2022-01-31 16:31:38,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-01-31 16:31:38,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:38,656 INFO L225 Difference]: With dead ends: 884 [2022-01-31 16:31:38,656 INFO L226 Difference]: Without dead ends: 884 [2022-01-31 16:31:38,656 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 [2022-01-31 16:31:38,656 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 127 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:38,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 376 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-01-31 16:31:38,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-01-31 16:31:38,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 702. [2022-01-31 16:31:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 697 states have (on average 1.5480631276901005) internal successors, (1079), 697 states have internal predecessors, (1079), 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) [2022-01-31 16:31:38,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1083 transitions. [2022-01-31 16:31:38,669 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1083 transitions. Word has length 123 [2022-01-31 16:31:38,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:38,669 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 1083 transitions. [2022-01-31 16:31:38,669 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) [2022-01-31 16:31:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1083 transitions. [2022-01-31 16:31:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 16:31:38,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:38,671 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:38,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:31:38,671 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:38,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:38,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1791142380, now seen corresponding path program 1 times [2022-01-31 16:31:38,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:38,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995902167] [2022-01-31 16:31:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:38,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:38,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:31:38,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:38,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995902167] [2022-01-31 16:31:38,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995902167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:38,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:38,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:38,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234525983] [2022-01-31 16:31:38,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:38,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:38,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:38,778 INFO L87 Difference]: Start difference. First operand 702 states and 1083 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) [2022-01-31 16:31:41,775 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 [] [2022-01-31 16:31:43,796 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 [] [2022-01-31 16:31:44,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:44,599 INFO L93 Difference]: Finished difference Result 838 states and 1267 transitions. [2022-01-31 16:31:44,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:44,600 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 [2022-01-31 16:31:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:44,606 INFO L225 Difference]: With dead ends: 838 [2022-01-31 16:31:44,606 INFO L226 Difference]: Without dead ends: 838 [2022-01-31 16:31:44,606 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 [2022-01-31 16:31:44,607 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 81 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:44,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 523 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 526 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:31:44,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-01-31 16:31:44,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 714. [2022-01-31 16:31:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 709 states have (on average 1.5500705218617772) internal successors, (1099), 709 states have internal predecessors, (1099), 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) [2022-01-31 16:31:44,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1103 transitions. [2022-01-31 16:31:44,620 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1103 transitions. Word has length 124 [2022-01-31 16:31:44,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:44,620 INFO L470 AbstractCegarLoop]: Abstraction has 714 states and 1103 transitions. [2022-01-31 16:31:44,621 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) [2022-01-31 16:31:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1103 transitions. [2022-01-31 16:31:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-31 16:31:44,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:44,622 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:44,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:31:44,622 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:44,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1305819021, now seen corresponding path program 1 times [2022-01-31 16:31:44,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:44,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766896476] [2022-01-31 16:31:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:44,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:31:44,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:44,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766896476] [2022-01-31 16:31:44,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766896476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:44,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:44,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:44,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981574996] [2022-01-31 16:31:44,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:44,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:44,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:44,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:44,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:44,771 INFO L87 Difference]: Start difference. First operand 714 states and 1103 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:47,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:48,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:48,353 INFO L93 Difference]: Finished difference Result 826 states and 1248 transitions. [2022-01-31 16:31:48,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:48,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-01-31 16:31:48,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:48,356 INFO L225 Difference]: With dead ends: 826 [2022-01-31 16:31:48,356 INFO L226 Difference]: Without dead ends: 826 [2022-01-31 16:31:48,356 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 [2022-01-31 16:31:48,356 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 69 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:48,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 529 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:31:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-01-31 16:31:48,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 720. [2022-01-31 16:31:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.5454545454545454) internal successors, (1105), 715 states have internal predecessors, (1105), 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) [2022-01-31 16:31:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1109 transitions. [2022-01-31 16:31:48,368 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1109 transitions. Word has length 131 [2022-01-31 16:31:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:48,368 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1109 transitions. [2022-01-31 16:31:48,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1109 transitions. [2022-01-31 16:31:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-31 16:31:48,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:48,369 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:48,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:31:48,370 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:48,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:48,370 INFO L85 PathProgramCache]: Analyzing trace with hash 963957175, now seen corresponding path program 1 times [2022-01-31 16:31:48,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:48,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510598979] [2022-01-31 16:31:48,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:48,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:31:48,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:48,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510598979] [2022-01-31 16:31:48,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510598979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:48,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:48,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:48,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013558925] [2022-01-31 16:31:48,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:48,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:48,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:48,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:48,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:48,480 INFO L87 Difference]: Start difference. First operand 720 states and 1109 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:49,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:51,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:52,850 INFO L93 Difference]: Finished difference Result 876 states and 1310 transitions. [2022-01-31 16:31:52,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:52,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 135 [2022-01-31 16:31:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:52,853 INFO L225 Difference]: With dead ends: 876 [2022-01-31 16:31:52,853 INFO L226 Difference]: Without dead ends: 876 [2022-01-31 16:31:52,853 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 [2022-01-31 16:31:52,853 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 148 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:52,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:31:52,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-01-31 16:31:52,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 720. [2022-01-31 16:31:52,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.53006993006993) internal successors, (1094), 715 states have internal predecessors, (1094), 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) [2022-01-31 16:31:52,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1098 transitions. [2022-01-31 16:31:52,871 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1098 transitions. Word has length 135 [2022-01-31 16:31:52,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:52,871 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1098 transitions. [2022-01-31 16:31:52,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:52,871 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1098 transitions. [2022-01-31 16:31:52,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-31 16:31:52,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:52,873 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:52,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:31:52,873 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:52,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -81620505, now seen corresponding path program 1 times [2022-01-31 16:31:52,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492589742] [2022-01-31 16:31:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:52,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:52,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:31:53,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:53,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492589742] [2022-01-31 16:31:53,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492589742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:53,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:53,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:53,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939861309] [2022-01-31 16:31:53,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:53,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:53,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:53,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:53,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:53,002 INFO L87 Difference]: Start difference. First operand 720 states and 1098 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:55,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:57,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:31:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:31:58,183 INFO L93 Difference]: Finished difference Result 876 states and 1302 transitions. [2022-01-31 16:31:58,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:31:58,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-01-31 16:31:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:31:58,185 INFO L225 Difference]: With dead ends: 876 [2022-01-31 16:31:58,185 INFO L226 Difference]: Without dead ends: 876 [2022-01-31 16:31:58,185 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 [2022-01-31 16:31:58,186 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 138 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:31:58,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:31:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-01-31 16:31:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 720. [2022-01-31 16:31:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.5188811188811189) internal successors, (1086), 715 states have internal predecessors, (1086), 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) [2022-01-31 16:31:58,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1090 transitions. [2022-01-31 16:31:58,197 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1090 transitions. Word has length 139 [2022-01-31 16:31:58,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:31:58,197 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1090 transitions. [2022-01-31 16:31:58,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:31:58,197 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1090 transitions. [2022-01-31 16:31:58,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-31 16:31:58,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:31:58,199 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:31:58,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:31:58,199 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:31:58,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:31:58,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1051911512, now seen corresponding path program 1 times [2022-01-31 16:31:58,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:31:58,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508003094] [2022-01-31 16:31:58,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:31:58,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:31:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:31:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:31:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:31:58,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:31:58,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508003094] [2022-01-31 16:31:58,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508003094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:31:58,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:31:58,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:31:58,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966543644] [2022-01-31 16:31:58,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:31:58,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:31:58,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:31:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:31:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:31:58,307 INFO L87 Difference]: Start difference. First operand 720 states and 1090 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) [2022-01-31 16:32:00,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:02,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:03,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:03,221 INFO L93 Difference]: Finished difference Result 818 states and 1224 transitions. [2022-01-31 16:32:03,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:03,222 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 139 [2022-01-31 16:32:03,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:03,224 INFO L225 Difference]: With dead ends: 818 [2022-01-31 16:32:03,224 INFO L226 Difference]: Without dead ends: 818 [2022-01-31 16:32:03,225 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 [2022-01-31 16:32:03,225 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 36 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:03,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 619 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 16:32:03,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-01-31 16:32:03,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 772. [2022-01-31 16:32:03,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 767 states have (on average 1.514993481095176) internal successors, (1162), 767 states have internal predecessors, (1162), 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) [2022-01-31 16:32:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1166 transitions. [2022-01-31 16:32:03,235 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1166 transitions. Word has length 139 [2022-01-31 16:32:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:03,236 INFO L470 AbstractCegarLoop]: Abstraction has 772 states and 1166 transitions. [2022-01-31 16:32:03,236 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) [2022-01-31 16:32:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1166 transitions. [2022-01-31 16:32:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-31 16:32:03,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:03,237 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] [2022-01-31 16:32:03,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:32:03,238 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:03,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:03,238 INFO L85 PathProgramCache]: Analyzing trace with hash -30045473, now seen corresponding path program 1 times [2022-01-31 16:32:03,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:03,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173019685] [2022-01-31 16:32:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:03,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:03,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:03,346 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:03,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:03,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173019685] [2022-01-31 16:32:03,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173019685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:03,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:03,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:03,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77054917] [2022-01-31 16:32:03,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:03,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:03,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:03,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:03,347 INFO L87 Difference]: Start difference. First operand 772 states and 1166 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:32:04,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:06,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:08,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:09,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:09,293 INFO L93 Difference]: Finished difference Result 1008 states and 1498 transitions. [2022-01-31 16:32:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:09,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-01-31 16:32:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:09,296 INFO L225 Difference]: With dead ends: 1008 [2022-01-31 16:32:09,296 INFO L226 Difference]: Without dead ends: 1008 [2022-01-31 16:32:09,297 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 [2022-01-31 16:32:09,297 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:09,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 16:32:09,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-01-31 16:32:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 828. [2022-01-31 16:32:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 823 states have (on average 1.5066828675577157) internal successors, (1240), 823 states have internal predecessors, (1240), 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) [2022-01-31 16:32:09,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1244 transitions. [2022-01-31 16:32:09,310 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1244 transitions. Word has length 142 [2022-01-31 16:32:09,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:09,310 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1244 transitions. [2022-01-31 16:32:09,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:32:09,310 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1244 transitions. [2022-01-31 16:32:09,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-31 16:32:09,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:09,312 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] [2022-01-31 16:32:09,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:32:09,312 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:09,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1238333083, now seen corresponding path program 1 times [2022-01-31 16:32:09,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:09,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902564949] [2022-01-31 16:32:09,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:09,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:09,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:09,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902564949] [2022-01-31 16:32:09,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902564949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:09,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:09,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:09,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712501219] [2022-01-31 16:32:09,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:09,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:09,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:09,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:09,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:09,436 INFO L87 Difference]: Start difference. First operand 828 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:32:12,298 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 [] [2022-01-31 16:32:14,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:16,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:16,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:16,744 INFO L93 Difference]: Finished difference Result 898 states and 1329 transitions. [2022-01-31 16:32:16,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:16,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-01-31 16:32:16,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:16,746 INFO L225 Difference]: With dead ends: 898 [2022-01-31 16:32:16,746 INFO L226 Difference]: Without dead ends: 898 [2022-01-31 16:32:16,747 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 [2022-01-31 16:32:16,747 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 67 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:16,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 559 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 501 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-01-31 16:32:16,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-01-31 16:32:16,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 828. [2022-01-31 16:32:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 823 states have (on average 1.5042527339003646) internal successors, (1238), 823 states have internal predecessors, (1238), 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) [2022-01-31 16:32:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1242 transitions. [2022-01-31 16:32:16,758 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1242 transitions. Word has length 143 [2022-01-31 16:32:16,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:16,759 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1242 transitions. [2022-01-31 16:32:16,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:32:16,759 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1242 transitions. [2022-01-31 16:32:16,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 16:32:16,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:16,761 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:32:16,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 16:32:16,761 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:16,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1434976918, now seen corresponding path program 1 times [2022-01-31 16:32:16,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:16,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122694143] [2022-01-31 16:32:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:16,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:32:16,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:16,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122694143] [2022-01-31 16:32:16,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122694143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:16,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:16,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:16,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403422791] [2022-01-31 16:32:16,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:16,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:16,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:16,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:16,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:16,869 INFO L87 Difference]: Start difference. First operand 828 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:32:19,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:19,523 INFO L93 Difference]: Finished difference Result 541 states and 793 transitions. [2022-01-31 16:32:19,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:19,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-01-31 16:32:19,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:19,524 INFO L225 Difference]: With dead ends: 541 [2022-01-31 16:32:19,525 INFO L226 Difference]: Without dead ends: 541 [2022-01-31 16:32:19,525 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 [2022-01-31 16:32:19,525 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 145 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:19,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 404 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:32:19,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-01-31 16:32:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 470. [2022-01-31 16:32:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 465 states have (on average 1.4752688172043011) internal successors, (686), 465 states have internal predecessors, (686), 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) [2022-01-31 16:32:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 690 transitions. [2022-01-31 16:32:19,532 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 690 transitions. Word has length 144 [2022-01-31 16:32:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:19,532 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 690 transitions. [2022-01-31 16:32:19,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:32:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 690 transitions. [2022-01-31 16:32:19,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 16:32:19,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:19,534 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:32:19,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 16:32:19,534 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:19,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:19,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1789601228, now seen corresponding path program 1 times [2022-01-31 16:32:19,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:19,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075409081] [2022-01-31 16:32:19,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:19,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:19,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:19,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075409081] [2022-01-31 16:32:19,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075409081] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:19,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:19,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:19,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34379150] [2022-01-31 16:32:19,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:19,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:19,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:19,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:19,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:19,656 INFO L87 Difference]: Start difference. First operand 470 states and 690 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) [2022-01-31 16:32:21,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:22,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:24,939 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 [] [2022-01-31 16:32:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:25,354 INFO L93 Difference]: Finished difference Result 581 states and 851 transitions. [2022-01-31 16:32:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-01-31 16:32:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:25,356 INFO L225 Difference]: With dead ends: 581 [2022-01-31 16:32:25,356 INFO L226 Difference]: Without dead ends: 581 [2022-01-31 16:32:25,356 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 [2022-01-31 16:32:25,356 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 125 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:25,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 404 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 16:32:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-01-31 16:32:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 500. [2022-01-31 16:32:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4686868686868686) internal successors, (727), 495 states have internal predecessors, (727), 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) [2022-01-31 16:32:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 731 transitions. [2022-01-31 16:32:25,364 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 731 transitions. Word has length 144 [2022-01-31 16:32:25,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:25,364 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 731 transitions. [2022-01-31 16:32:25,364 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) [2022-01-31 16:32:25,364 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 731 transitions. [2022-01-31 16:32:25,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 16:32:25,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:25,365 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-01-31 16:32:25,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:32:25,366 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:25,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1236073746, now seen corresponding path program 1 times [2022-01-31 16:32:25,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:25,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251846612] [2022-01-31 16:32:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:25,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:25,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:25,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251846612] [2022-01-31 16:32:25,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251846612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:25,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:25,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:25,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670441844] [2022-01-31 16:32:25,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:25,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:25,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:25,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:25,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:25,474 INFO L87 Difference]: Start difference. First operand 500 states and 731 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) [2022-01-31 16:32:27,804 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 [] [2022-01-31 16:32:29,824 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 [] [2022-01-31 16:32:30,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:30,779 INFO L93 Difference]: Finished difference Result 527 states and 767 transitions. [2022-01-31 16:32:30,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:30,779 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 [2022-01-31 16:32:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:30,781 INFO L225 Difference]: With dead ends: 527 [2022-01-31 16:32:30,781 INFO L226 Difference]: Without dead ends: 527 [2022-01-31 16:32:30,781 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 [2022-01-31 16:32:30,781 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 61 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:30,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 547 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-01-31 16:32:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-01-31 16:32:30,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 500. [2022-01-31 16:32:30,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4666666666666666) internal successors, (726), 495 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) [2022-01-31 16:32:30,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 730 transitions. [2022-01-31 16:32:30,788 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 730 transitions. Word has length 145 [2022-01-31 16:32:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:30,789 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 730 transitions. [2022-01-31 16:32:30,789 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) [2022-01-31 16:32:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 730 transitions. [2022-01-31 16:32:30,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 16:32:30,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:30,790 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:32:30,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 16:32:30,790 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:30,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2083258222, now seen corresponding path program 1 times [2022-01-31 16:32:30,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:30,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217031929] [2022-01-31 16:32:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:30,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:30,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:30,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:30,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217031929] [2022-01-31 16:32:30,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217031929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:30,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:30,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:30,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770928673] [2022-01-31 16:32:30,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:30,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:30,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:30,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:30,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:30,912 INFO L87 Difference]: Start difference. First operand 500 states and 730 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) [2022-01-31 16:32:32,352 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 [] [2022-01-31 16:32:34,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:35,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:35,352 INFO L93 Difference]: Finished difference Result 525 states and 764 transitions. [2022-01-31 16:32:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:35,353 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 [2022-01-31 16:32:35,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:35,354 INFO L225 Difference]: With dead ends: 525 [2022-01-31 16:32:35,354 INFO L226 Difference]: Without dead ends: 525 [2022-01-31 16:32:35,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:32:35,355 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 54 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:35,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 549 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:32:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-01-31 16:32:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 500. [2022-01-31 16:32:35,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4646464646464648) internal successors, (725), 495 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) [2022-01-31 16:32:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 729 transitions. [2022-01-31 16:32:35,361 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 729 transitions. Word has length 145 [2022-01-31 16:32:35,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:35,361 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 729 transitions. [2022-01-31 16:32:35,362 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) [2022-01-31 16:32:35,362 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 729 transitions. [2022-01-31 16:32:35,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-31 16:32:35,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:35,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:32:35,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 16:32:35,363 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:35,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:35,363 INFO L85 PathProgramCache]: Analyzing trace with hash -932365580, now seen corresponding path program 1 times [2022-01-31 16:32:35,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:35,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411117062] [2022-01-31 16:32:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:35,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:35,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:35,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:35,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411117062] [2022-01-31 16:32:35,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411117062] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:35,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:35,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:35,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098188315] [2022-01-31 16:32:35,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:35,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:35,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:35,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:35,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:35,485 INFO L87 Difference]: Start difference. First operand 500 states and 729 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) [2022-01-31 16:32:36,826 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 [] [2022-01-31 16:32:37,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:39,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:40,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:41,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:41,312 INFO L93 Difference]: Finished difference Result 523 states and 760 transitions. [2022-01-31 16:32:41,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:41,313 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 [2022-01-31 16:32:41,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:41,314 INFO L225 Difference]: With dead ends: 523 [2022-01-31 16:32:41,314 INFO L226 Difference]: Without dead ends: 523 [2022-01-31 16:32:41,314 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 [2022-01-31 16:32:41,315 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 56 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:41,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:32:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-01-31 16:32:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 500. [2022-01-31 16:32:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4626262626262627) internal successors, (724), 495 states have internal predecessors, (724), 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) [2022-01-31 16:32:41,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 728 transitions. [2022-01-31 16:32:41,321 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 728 transitions. Word has length 146 [2022-01-31 16:32:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:41,321 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 728 transitions. [2022-01-31 16:32:41,321 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) [2022-01-31 16:32:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 728 transitions. [2022-01-31 16:32:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-31 16:32:41,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:41,323 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:32:41,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 16:32:41,323 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:41,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:41,323 INFO L85 PathProgramCache]: Analyzing trace with hash 423911587, now seen corresponding path program 1 times [2022-01-31 16:32:41,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:41,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484667582] [2022-01-31 16:32:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:41,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:41,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:41,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484667582] [2022-01-31 16:32:41,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484667582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:41,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:41,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:41,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306852957] [2022-01-31 16:32:41,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:41,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:41,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:41,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:41,443 INFO L87 Difference]: Start difference. First operand 500 states and 728 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) [2022-01-31 16:32:42,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:44,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:46,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:47,616 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 [] [2022-01-31 16:32:47,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:47,971 INFO L93 Difference]: Finished difference Result 523 states and 759 transitions. [2022-01-31 16:32:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:47,972 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 [2022-01-31 16:32:47,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:47,973 INFO L225 Difference]: With dead ends: 523 [2022-01-31 16:32:47,974 INFO L226 Difference]: Without dead ends: 523 [2022-01-31 16:32:47,976 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 [2022-01-31 16:32:47,976 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 49 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:47,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 555 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 16:32:47,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-01-31 16:32:47,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 500. [2022-01-31 16:32:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4606060606060607) internal successors, (723), 495 states have internal predecessors, (723), 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) [2022-01-31 16:32:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 727 transitions. [2022-01-31 16:32:47,984 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 727 transitions. Word has length 149 [2022-01-31 16:32:47,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:47,984 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 727 transitions. [2022-01-31 16:32:47,985 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) [2022-01-31 16:32:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 727 transitions. [2022-01-31 16:32:47,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 16:32:47,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:47,986 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:32:47,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 16:32:47,986 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:47,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:47,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1331112290, now seen corresponding path program 1 times [2022-01-31 16:32:47,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:47,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255425618] [2022-01-31 16:32:47,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:47,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:48,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:48,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:48,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255425618] [2022-01-31 16:32:48,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255425618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:48,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:48,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:48,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487049526] [2022-01-31 16:32:48,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:48,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:48,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:48,101 INFO L87 Difference]: Start difference. First operand 500 states and 727 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) [2022-01-31 16:32:49,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:51,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:52,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:54,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:32:54,580 INFO L93 Difference]: Finished difference Result 571 states and 826 transitions. [2022-01-31 16:32:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:32:54,580 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 [2022-01-31 16:32:54,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:32:54,582 INFO L225 Difference]: With dead ends: 571 [2022-01-31 16:32:54,582 INFO L226 Difference]: Without dead ends: 571 [2022-01-31 16:32:54,582 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 [2022-01-31 16:32:54,582 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 121 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:32:54,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 404 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 16:32:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-01-31 16:32:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 500. [2022-01-31 16:32:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4525252525252526) internal successors, (719), 495 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:32:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 723 transitions. [2022-01-31 16:32:54,589 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 723 transitions. Word has length 150 [2022-01-31 16:32:54,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:32:54,589 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 723 transitions. [2022-01-31 16:32:54,589 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) [2022-01-31 16:32:54,589 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 723 transitions. [2022-01-31 16:32:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-31 16:32:54,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:32:54,590 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:32:54,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 16:32:54,590 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:32:54,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:32:54,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1878533287, now seen corresponding path program 1 times [2022-01-31 16:32:54,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:32:54,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849636240] [2022-01-31 16:32:54,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:32:54,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:32:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:54,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:32:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:32:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:32:54,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:32:54,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849636240] [2022-01-31 16:32:54,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849636240] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:32:54,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:32:54,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:32:54,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441238512] [2022-01-31 16:32:54,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:32:54,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:32:54,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:32:54,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:32:54,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:32:54,733 INFO L87 Difference]: Start difference. First operand 500 states and 723 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) [2022-01-31 16:32:56,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:32:58,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:00,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:02,739 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 [] [2022-01-31 16:33:03,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:03,101 INFO L93 Difference]: Finished difference Result 517 states and 745 transitions. [2022-01-31 16:33:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:33:03,102 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 [2022-01-31 16:33:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:03,103 INFO L225 Difference]: With dead ends: 517 [2022-01-31 16:33:03,103 INFO L226 Difference]: Without dead ends: 517 [2022-01-31 16:33:03,103 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 [2022-01-31 16:33:03,104 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 38 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:03,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 559 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-01-31 16:33:03,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-01-31 16:33:03,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 500. [2022-01-31 16:33:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4505050505050505) internal successors, (718), 495 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) [2022-01-31 16:33:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 722 transitions. [2022-01-31 16:33:03,110 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 722 transitions. Word has length 150 [2022-01-31 16:33:03,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:03,110 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 722 transitions. [2022-01-31 16:33:03,111 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) [2022-01-31 16:33:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 722 transitions. [2022-01-31 16:33:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-01-31 16:33:03,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:03,112 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:03,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 16:33:03,112 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:03,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:03,112 INFO L85 PathProgramCache]: Analyzing trace with hash -200206081, now seen corresponding path program 1 times [2022-01-31 16:33:03,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:03,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965591859] [2022-01-31 16:33:03,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:03,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:03,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:33:03,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:03,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965591859] [2022-01-31 16:33:03,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965591859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:03,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:03,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:33:03,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470580633] [2022-01-31 16:33:03,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:03,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:33:03,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:03,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:33:03,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:33:03,252 INFO L87 Difference]: Start difference. First operand 500 states and 722 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) [2022-01-31 16:33:06,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:06,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:06,908 INFO L93 Difference]: Finished difference Result 571 states and 821 transitions. [2022-01-31 16:33:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:33:06,909 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 151 [2022-01-31 16:33:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:06,910 INFO L225 Difference]: With dead ends: 571 [2022-01-31 16:33:06,910 INFO L226 Difference]: Without dead ends: 571 [2022-01-31 16:33:06,910 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 [2022-01-31 16:33:06,911 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 118 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:06,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 406 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:33:06,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-01-31 16:33:06,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 500. [2022-01-31 16:33:06,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 495 states have (on average 1.4424242424242424) internal successors, (714), 495 states have internal predecessors, (714), 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) [2022-01-31 16:33:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 718 transitions. [2022-01-31 16:33:06,919 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 718 transitions. Word has length 151 [2022-01-31 16:33:06,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:06,919 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 718 transitions. [2022-01-31 16:33:06,919 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) [2022-01-31 16:33:06,919 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 718 transitions. [2022-01-31 16:33:06,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-31 16:33:06,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:06,920 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:06,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 16:33:06,921 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:06,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:06,921 INFO L85 PathProgramCache]: Analyzing trace with hash -293704765, now seen corresponding path program 1 times [2022-01-31 16:33:06,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:06,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683520052] [2022-01-31 16:33:06,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:06,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:07,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:33:07,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:07,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683520052] [2022-01-31 16:33:07,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683520052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:07,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:07,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:07,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208584783] [2022-01-31 16:33:07,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:07,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:07,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:07,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:07,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:07,029 INFO L87 Difference]: Start difference. First operand 500 states and 718 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:08,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:09,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:10,577 INFO L93 Difference]: Finished difference Result 942 states and 1354 transitions. [2022-01-31 16:33:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:10,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-01-31 16:33:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:10,582 INFO L225 Difference]: With dead ends: 942 [2022-01-31 16:33:10,582 INFO L226 Difference]: Without dead ends: 942 [2022-01-31 16:33:10,582 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 [2022-01-31 16:33:10,583 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:10,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 433 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:33:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-01-31 16:33:10,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-01-31 16:33:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 937 states have (on average 1.4407684098185698) internal successors, (1350), 937 states have internal predecessors, (1350), 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) [2022-01-31 16:33:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1354 transitions. [2022-01-31 16:33:10,595 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1354 transitions. Word has length 158 [2022-01-31 16:33:10,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:10,595 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1354 transitions. [2022-01-31 16:33:10,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1354 transitions. [2022-01-31 16:33:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-01-31 16:33:10,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:10,598 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:10,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 16:33:10,598 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:10,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:10,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1249774760, now seen corresponding path program 1 times [2022-01-31 16:33:10,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:10,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496189894] [2022-01-31 16:33:10,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:10,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:10,749 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-01-31 16:33:10,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:10,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496189894] [2022-01-31 16:33:10,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496189894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:10,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:10,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:33:10,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888349328] [2022-01-31 16:33:10,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:10,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:33:10,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:10,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:33:10,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:33:10,750 INFO L87 Difference]: Start difference. First operand 942 states and 1354 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) [2022-01-31 16:33:12,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:15,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:15,824 INFO L93 Difference]: Finished difference Result 986 states and 1415 transitions. [2022-01-31 16:33:15,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:33:15,824 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 169 [2022-01-31 16:33:15,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:15,826 INFO L225 Difference]: With dead ends: 986 [2022-01-31 16:33:15,827 INFO L226 Difference]: Without dead ends: 986 [2022-01-31 16:33:15,827 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 [2022-01-31 16:33:15,827 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 40 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:15,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 618 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 16:33:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-01-31 16:33:15,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 942. [2022-01-31 16:33:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 937 states have (on average 1.4386339381003201) internal successors, (1348), 937 states have internal predecessors, (1348), 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) [2022-01-31 16:33:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1352 transitions. [2022-01-31 16:33:15,837 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1352 transitions. Word has length 169 [2022-01-31 16:33:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:15,837 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1352 transitions. [2022-01-31 16:33:15,837 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) [2022-01-31 16:33:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1352 transitions. [2022-01-31 16:33:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-01-31 16:33:15,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:15,839 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:15,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 16:33:15,839 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash -361226516, now seen corresponding path program 1 times [2022-01-31 16:33:15,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:15,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122034676] [2022-01-31 16:33:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:15,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-01-31 16:33:15,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122034676] [2022-01-31 16:33:15,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122034676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:15,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:15,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:15,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477162063] [2022-01-31 16:33:15,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:15,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:15,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:15,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:15,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:15,993 INFO L87 Difference]: Start difference. First operand 942 states and 1352 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:17,726 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 [] [2022-01-31 16:33:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:19,713 INFO L93 Difference]: Finished difference Result 1384 states and 1987 transitions. [2022-01-31 16:33:19,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:19,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-01-31 16:33:19,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:19,716 INFO L225 Difference]: With dead ends: 1384 [2022-01-31 16:33:19,716 INFO L226 Difference]: Without dead ends: 1384 [2022-01-31 16:33:19,716 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 [2022-01-31 16:33:19,717 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:19,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 583 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:33:19,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-01-31 16:33:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2022-01-31 16:33:19,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1379 states have (on average 1.4379985496736767) internal successors, (1983), 1379 states have internal predecessors, (1983), 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) [2022-01-31 16:33:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1987 transitions. [2022-01-31 16:33:19,730 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1987 transitions. Word has length 194 [2022-01-31 16:33:19,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:19,730 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 1987 transitions. [2022-01-31 16:33:19,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1987 transitions. [2022-01-31 16:33:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-31 16:33:19,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:19,733 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:19,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 16:33:19,733 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:19,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -822967401, now seen corresponding path program 1 times [2022-01-31 16:33:19,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:19,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759048447] [2022-01-31 16:33:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:19,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:19,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-01-31 16:33:19,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:19,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759048447] [2022-01-31 16:33:19,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759048447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:19,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:19,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:19,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854349441] [2022-01-31 16:33:19,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:19,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:19,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:19,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:19,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:19,861 INFO L87 Difference]: Start difference. First operand 1384 states and 1987 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) [2022-01-31 16:33:21,143 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 [] [2022-01-31 16:33:22,861 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 [] [2022-01-31 16:33:23,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:23,298 INFO L93 Difference]: Finished difference Result 1826 states and 2622 transitions. [2022-01-31 16:33:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:23,299 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 195 [2022-01-31 16:33:23,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:23,303 INFO L225 Difference]: With dead ends: 1826 [2022-01-31 16:33:23,303 INFO L226 Difference]: Without dead ends: 1826 [2022-01-31 16:33:23,304 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 [2022-01-31 16:33:23,304 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:23,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 585 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 16:33:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2022-01-31 16:33:23,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1826. [2022-01-31 16:33:23,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1821 states have (on average 1.4376716090060406) internal successors, (2618), 1821 states have internal predecessors, (2618), 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) [2022-01-31 16:33:23,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2622 transitions. [2022-01-31 16:33:23,318 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2622 transitions. Word has length 195 [2022-01-31 16:33:23,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:23,319 INFO L470 AbstractCegarLoop]: Abstraction has 1826 states and 2622 transitions. [2022-01-31 16:33:23,319 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) [2022-01-31 16:33:23,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2622 transitions. [2022-01-31 16:33:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-31 16:33:23,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:23,322 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:23,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 16:33:23,323 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:23,323 INFO L85 PathProgramCache]: Analyzing trace with hash -864047940, now seen corresponding path program 1 times [2022-01-31 16:33:23,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:23,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237060427] [2022-01-31 16:33:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:23,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-01-31 16:33:23,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:23,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237060427] [2022-01-31 16:33:23,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237060427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:23,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:23,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:23,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19396140] [2022-01-31 16:33:23,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:23,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:23,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:23,454 INFO L87 Difference]: Start difference. First operand 1826 states and 2622 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:26,217 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 [] [2022-01-31 16:33:27,285 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 [] [2022-01-31 16:33:27,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:27,528 INFO L93 Difference]: Finished difference Result 2269 states and 3264 transitions. [2022-01-31 16:33:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:27,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-01-31 16:33:27,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:27,534 INFO L225 Difference]: With dead ends: 2269 [2022-01-31 16:33:27,534 INFO L226 Difference]: Without dead ends: 2269 [2022-01-31 16:33:27,534 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 [2022-01-31 16:33:27,534 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:27,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 384 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:33:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2022-01-31 16:33:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2269. [2022-01-31 16:33:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 2264 states have (on average 1.4399293286219081) internal successors, (3260), 2264 states have internal predecessors, (3260), 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) [2022-01-31 16:33:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 3264 transitions. [2022-01-31 16:33:27,556 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 3264 transitions. Word has length 201 [2022-01-31 16:33:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:27,556 INFO L470 AbstractCegarLoop]: Abstraction has 2269 states and 3264 transitions. [2022-01-31 16:33:27,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3264 transitions. [2022-01-31 16:33:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-01-31 16:33:27,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:27,560 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:27,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 16:33:27,560 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:27,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1522418342, now seen corresponding path program 1 times [2022-01-31 16:33:27,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:27,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28836273] [2022-01-31 16:33:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:27,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:27,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-01-31 16:33:27,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:27,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28836273] [2022-01-31 16:33:27,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28836273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:27,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:27,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:27,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913989009] [2022-01-31 16:33:27,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:27,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:27,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:27,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:27,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:27,707 INFO L87 Difference]: Start difference. First operand 2269 states and 3264 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:29,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:30,659 INFO L93 Difference]: Finished difference Result 2712 states and 3907 transitions. [2022-01-31 16:33:30,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:30,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2022-01-31 16:33:30,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:30,664 INFO L225 Difference]: With dead ends: 2712 [2022-01-31 16:33:30,664 INFO L226 Difference]: Without dead ends: 2712 [2022-01-31 16:33:30,665 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 [2022-01-31 16:33:30,665 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:30,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 383 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:33:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-01-31 16:33:30,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2712. [2022-01-31 16:33:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 2707 states have (on average 1.4418175101588475) internal successors, (3903), 2707 states have internal predecessors, (3903), 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) [2022-01-31 16:33:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 3907 transitions. [2022-01-31 16:33:30,689 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 3907 transitions. Word has length 233 [2022-01-31 16:33:30,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:30,689 INFO L470 AbstractCegarLoop]: Abstraction has 2712 states and 3907 transitions. [2022-01-31 16:33:30,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 3907 transitions. [2022-01-31 16:33:30,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-01-31 16:33:30,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:30,694 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:30,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 16:33:30,694 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:30,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash 928482833, now seen corresponding path program 1 times [2022-01-31 16:33:30,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:30,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085067180] [2022-01-31 16:33:30,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:30,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-01-31 16:33:30,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:30,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085067180] [2022-01-31 16:33:30,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085067180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:30,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:30,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:30,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160915322] [2022-01-31 16:33:30,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:30,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:30,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:30,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:30,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:30,864 INFO L87 Difference]: Start difference. First operand 2712 states and 3907 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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) [2022-01-31 16:33:33,765 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 [] [2022-01-31 16:33:34,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:34,409 INFO L93 Difference]: Finished difference Result 3155 states and 4551 transitions. [2022-01-31 16:33:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:34,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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 235 [2022-01-31 16:33:34,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:34,415 INFO L225 Difference]: With dead ends: 3155 [2022-01-31 16:33:34,415 INFO L226 Difference]: Without dead ends: 3155 [2022-01-31 16:33:34,415 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 [2022-01-31 16:33:34,415 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:34,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 382 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:33:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2022-01-31 16:33:34,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3155. [2022-01-31 16:33:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3155 states, 3150 states have (on average 1.4434920634920634) internal successors, (4547), 3150 states have internal predecessors, (4547), 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) [2022-01-31 16:33:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 4551 transitions. [2022-01-31 16:33:34,448 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 4551 transitions. Word has length 235 [2022-01-31 16:33:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:34,449 INFO L470 AbstractCegarLoop]: Abstraction has 3155 states and 4551 transitions. [2022-01-31 16:33:34,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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) [2022-01-31 16:33:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 4551 transitions. [2022-01-31 16:33:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-31 16:33:34,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:34,454 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:34,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 16:33:34,455 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:34,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1216969421, now seen corresponding path program 1 times [2022-01-31 16:33:34,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:34,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973827515] [2022-01-31 16:33:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:34,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:34,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:34,647 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-01-31 16:33:34,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:34,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973827515] [2022-01-31 16:33:34,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973827515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:34,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:34,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:33:34,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542642909] [2022-01-31 16:33:34,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:34,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:33:34,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:33:34,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:33:34,648 INFO L87 Difference]: Start difference. First operand 3155 states and 4551 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:36,574 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 [] [2022-01-31 16:33:37,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:39,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:40,304 INFO L93 Difference]: Finished difference Result 4163 states and 5983 transitions. [2022-01-31 16:33:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:33:40,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 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 268 [2022-01-31 16:33:40,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:40,308 INFO L225 Difference]: With dead ends: 4163 [2022-01-31 16:33:40,308 INFO L226 Difference]: Without dead ends: 4163 [2022-01-31 16:33:40,309 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 [2022-01-31 16:33:40,309 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:40,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 400 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-01-31 16:33:40,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2022-01-31 16:33:40,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 3603. [2022-01-31 16:33:40,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3598 states have (on average 1.4446914952751528) internal successors, (5198), 3598 states have internal predecessors, (5198), 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) [2022-01-31 16:33:40,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 5202 transitions. [2022-01-31 16:33:40,346 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 5202 transitions. Word has length 268 [2022-01-31 16:33:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:40,346 INFO L470 AbstractCegarLoop]: Abstraction has 3603 states and 5202 transitions. [2022-01-31 16:33:40,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 5202 transitions. [2022-01-31 16:33:40,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-01-31 16:33:40,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:40,353 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:40,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 16:33:40,353 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:40,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash -352741277, now seen corresponding path program 1 times [2022-01-31 16:33:40,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:40,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374494339] [2022-01-31 16:33:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:40,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:40,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-01-31 16:33:40,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:40,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374494339] [2022-01-31 16:33:40,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374494339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:40,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:40,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:40,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121265569] [2022-01-31 16:33:40,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:40,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:40,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:40,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:40,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:40,577 INFO L87 Difference]: Start difference. First operand 3603 states and 5202 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:41,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:43,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:44,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:44,344 INFO L93 Difference]: Finished difference Result 4105 states and 5925 transitions. [2022-01-31 16:33:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:44,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 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 274 [2022-01-31 16:33:44,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:44,350 INFO L225 Difference]: With dead ends: 4105 [2022-01-31 16:33:44,350 INFO L226 Difference]: Without dead ends: 4105 [2022-01-31 16:33:44,350 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 [2022-01-31 16:33:44,351 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:44,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 582 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:33:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2022-01-31 16:33:44,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 4105. [2022-01-31 16:33:44,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4105 states, 4100 states have (on average 1.4441463414634146) internal successors, (5921), 4100 states have internal predecessors, (5921), 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) [2022-01-31 16:33:44,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 5925 transitions. [2022-01-31 16:33:44,415 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 5925 transitions. Word has length 274 [2022-01-31 16:33:44,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:44,416 INFO L470 AbstractCegarLoop]: Abstraction has 4105 states and 5925 transitions. [2022-01-31 16:33:44,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 5925 transitions. [2022-01-31 16:33:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-01-31 16:33:44,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:44,421 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:44,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 16:33:44,422 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:44,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1108838722, now seen corresponding path program 1 times [2022-01-31 16:33:44,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:44,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187766064] [2022-01-31 16:33:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:44,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-01-31 16:33:44,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:44,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187766064] [2022-01-31 16:33:44,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187766064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:44,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:44,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:44,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267283064] [2022-01-31 16:33:44,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:44,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:44,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:44,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:44,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:44,572 INFO L87 Difference]: Start difference. First operand 4105 states and 5925 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:47,339 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 [] [2022-01-31 16:33:48,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:48,138 INFO L93 Difference]: Finished difference Result 4579 states and 6606 transitions. [2022-01-31 16:33:48,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:48,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 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 274 [2022-01-31 16:33:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:48,145 INFO L225 Difference]: With dead ends: 4579 [2022-01-31 16:33:48,145 INFO L226 Difference]: Without dead ends: 4579 [2022-01-31 16:33:48,145 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 [2022-01-31 16:33:48,146 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:48,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 585 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:33:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4579 states. [2022-01-31 16:33:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4579 to 4579. [2022-01-31 16:33:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4579 states, 4574 states have (on average 1.4433756012243113) internal successors, (6602), 4574 states have internal predecessors, (6602), 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) [2022-01-31 16:33:48,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4579 states to 4579 states and 6606 transitions. [2022-01-31 16:33:48,190 INFO L78 Accepts]: Start accepts. Automaton has 4579 states and 6606 transitions. Word has length 274 [2022-01-31 16:33:48,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:48,190 INFO L470 AbstractCegarLoop]: Abstraction has 4579 states and 6606 transitions. [2022-01-31 16:33:48,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:48,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4579 states and 6606 transitions. [2022-01-31 16:33:48,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-01-31 16:33:48,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:48,197 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:48,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 16:33:48,198 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:48,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:48,198 INFO L85 PathProgramCache]: Analyzing trace with hash 965804888, now seen corresponding path program 1 times [2022-01-31 16:33:48,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:48,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168695804] [2022-01-31 16:33:48,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:48,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-01-31 16:33:48,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:48,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168695804] [2022-01-31 16:33:48,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168695804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:48,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:48,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:48,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173159686] [2022-01-31 16:33:48,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:48,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:48,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:48,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:48,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:48,415 INFO L87 Difference]: Start difference. First operand 4579 states and 6606 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:51,384 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 [] [2022-01-31 16:33:52,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:52,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:52,691 INFO L93 Difference]: Finished difference Result 5086 states and 7346 transitions. [2022-01-31 16:33:52,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:52,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 349 [2022-01-31 16:33:52,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:52,700 INFO L225 Difference]: With dead ends: 5086 [2022-01-31 16:33:52,700 INFO L226 Difference]: Without dead ends: 5086 [2022-01-31 16:33:52,701 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 [2022-01-31 16:33:52,701 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:52,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 379 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:33:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2022-01-31 16:33:52,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 5086. [2022-01-31 16:33:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 5081 states have (on average 1.4449911434756937) internal successors, (7342), 5081 states have internal predecessors, (7342), 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) [2022-01-31 16:33:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7346 transitions. [2022-01-31 16:33:52,774 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7346 transitions. Word has length 349 [2022-01-31 16:33:52,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:52,774 INFO L470 AbstractCegarLoop]: Abstraction has 5086 states and 7346 transitions. [2022-01-31 16:33:52,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7346 transitions. [2022-01-31 16:33:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-01-31 16:33:52,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:52,782 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:52,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 16:33:52,782 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:52,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash -37374288, now seen corresponding path program 1 times [2022-01-31 16:33:52,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:52,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405719178] [2022-01-31 16:33:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:52,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:53,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-01-31 16:33:53,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:53,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405719178] [2022-01-31 16:33:53,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405719178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:53,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:53,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:33:53,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365117058] [2022-01-31 16:33:53,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:53,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:33:53,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:53,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:33:53,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:33:53,006 INFO L87 Difference]: Start difference. First operand 5086 states and 7346 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:54,610 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 [] [2022-01-31 16:33:55,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:57,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:33:57,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:33:57,263 INFO L93 Difference]: Finished difference Result 5593 states and 8087 transitions. [2022-01-31 16:33:57,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:33:57,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 390 [2022-01-31 16:33:57,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:33:57,272 INFO L225 Difference]: With dead ends: 5593 [2022-01-31 16:33:57,272 INFO L226 Difference]: Without dead ends: 5593 [2022-01-31 16:33:57,272 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 [2022-01-31 16:33:57,272 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 155 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:33:57,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 378 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:33:57,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2022-01-31 16:33:57,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 5593. [2022-01-31 16:33:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5593 states, 5588 states have (on average 1.4464924838940587) internal successors, (8083), 5588 states have internal predecessors, (8083), 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) [2022-01-31 16:33:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 8087 transitions. [2022-01-31 16:33:57,341 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 8087 transitions. Word has length 390 [2022-01-31 16:33:57,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:33:57,341 INFO L470 AbstractCegarLoop]: Abstraction has 5593 states and 8087 transitions. [2022-01-31 16:33:57,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 8087 transitions. [2022-01-31 16:33:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-01-31 16:33:57,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:33:57,349 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:33:57,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 16:33:57,349 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:33:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:33:57,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1764989462, now seen corresponding path program 1 times [2022-01-31 16:33:57,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:33:57,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148449877] [2022-01-31 16:33:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:33:57,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:33:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:57,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:33:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:33:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-01-31 16:33:57,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:33:57,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148449877] [2022-01-31 16:33:57,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148449877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:33:57,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:33:57,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:33:57,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664695066] [2022-01-31 16:33:57,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:33:57,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:33:57,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:33:57,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:33:57,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:33:57,752 INFO L87 Difference]: Start difference. First operand 5593 states and 8087 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:33:59,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:00,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:00,230 INFO L93 Difference]: Finished difference Result 6516 states and 9367 transitions. [2022-01-31 16:34:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:00,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 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 397 [2022-01-31 16:34:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:00,237 INFO L225 Difference]: With dead ends: 6516 [2022-01-31 16:34:00,237 INFO L226 Difference]: Without dead ends: 6516 [2022-01-31 16:34:00,237 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 [2022-01-31 16:34:00,238 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 67 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:00,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 667 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 587 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:34:00,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6516 states. [2022-01-31 16:34:00,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6516 to 6044. [2022-01-31 16:34:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 6039 states have (on average 1.4459347574101673) internal successors, (8732), 6039 states have internal predecessors, (8732), 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) [2022-01-31 16:34:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8736 transitions. [2022-01-31 16:34:00,334 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8736 transitions. Word has length 397 [2022-01-31 16:34:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:00,335 INFO L470 AbstractCegarLoop]: Abstraction has 6044 states and 8736 transitions. [2022-01-31 16:34:00,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8736 transitions. [2022-01-31 16:34:00,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-01-31 16:34:00,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:00,344 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:00,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 16:34:00,345 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:00,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:00,345 INFO L85 PathProgramCache]: Analyzing trace with hash -2056458891, now seen corresponding path program 1 times [2022-01-31 16:34:00,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:00,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586703447] [2022-01-31 16:34:00,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:00,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-01-31 16:34:01,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:01,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586703447] [2022-01-31 16:34:01,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586703447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:01,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:01,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 16:34:01,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17421995] [2022-01-31 16:34:01,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:01,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:34:01,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:01,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:34:01,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:34:01,176 INFO L87 Difference]: Start difference. First operand 6044 states and 8736 transitions. Second operand has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-01-31 16:34:03,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:04,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:07,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:08,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:10,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:11,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:11,059 INFO L93 Difference]: Finished difference Result 6052 states and 8746 transitions. [2022-01-31 16:34:11,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:34:11,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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 397 [2022-01-31 16:34:11,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:11,068 INFO L225 Difference]: With dead ends: 6052 [2022-01-31 16:34:11,068 INFO L226 Difference]: Without dead ends: 6044 [2022-01-31 16:34:11,068 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 [2022-01-31 16:34:11,069 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:11,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-01-31 16:34:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2022-01-31 16:34:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 6044. [2022-01-31 16:34:11,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 6039 states have (on average 1.4457691670806425) internal successors, (8731), 6039 states have internal predecessors, (8731), 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) [2022-01-31 16:34:11,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8735 transitions. [2022-01-31 16:34:11,125 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8735 transitions. Word has length 397 [2022-01-31 16:34:11,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:11,126 INFO L470 AbstractCegarLoop]: Abstraction has 6044 states and 8735 transitions. [2022-01-31 16:34:11,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-01-31 16:34:11,126 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8735 transitions. [2022-01-31 16:34:11,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-01-31 16:34:11,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:11,134 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:34:11,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 16:34:11,134 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:11,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:11,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1001650358, now seen corresponding path program 1 times [2022-01-31 16:34:11,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:11,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937963559] [2022-01-31 16:34:11,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:11,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:13,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 134 proven. 1253 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-01-31 16:34:13,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:13,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937963559] [2022-01-31 16:34:13,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937963559] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:34:13,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613616253] [2022-01-31 16:34:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:13,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:34:13,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:34:13,915 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) [2022-01-31 16:34:13,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:34:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:15,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 189 conjunts are in the unsatisfiable core [2022-01-31 16:34:15,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:34:15,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 6111661630 treesize of output 3961554994 [2022-01-31 16:34:41,556 WARN L228 SmtUtils]: Spent 26.21s on a formula simplification that was a NOOP. DAG size: 2223 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-01-31 16:34:41,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:34:42,168 INFO L353 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-01-31 16:34:42,172 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 15178532030 treesize of output 15178532049