/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.10.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:10:55,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:10:55,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:10:55,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:10:55,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:10:55,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:10:55,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:10:55,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:10:55,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:10:55,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:10:55,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:10:55,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:10:55,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:10:55,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:10:55,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:10:55,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:10:55,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:10:55,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:10:55,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:10:55,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:10:55,139 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:10:55,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:10:55,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:10:55,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:10:55,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:10:55,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 21:10:55,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 21:10:55,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 21:10:55,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 21:10:55,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 21:10:55,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 21:10:55,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 21:10:55,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 21:10:55,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 21:10:55,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 21:10:55,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 21:10:55,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 21:10:55,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 21:10:55,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 21:10:55,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:10:55,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:10:55,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:10:55,157 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:10:55,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:10:55,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:10:55,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:10:55,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:10:55,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:10:55,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:10:55,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:10:55,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:10:55,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:10:55,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:10:55,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:10:55,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:10:55,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:10:55,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:10:55,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:10:55,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:10:55,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:10:55,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:10:55,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:10:55,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:10:55,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:10:55,169 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:10:55,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:10:55,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:10:55,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:10:55,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:10:55,374 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:10:55,374 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:10:55,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-18 21:10:55,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a9976b0/f83267dd1ae74618af8b3dd95df42bc8/FLAG0446a9675 [2022-03-18 21:10:55,923 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:10:55,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-18 21:10:55,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a9976b0/f83267dd1ae74618af8b3dd95df42bc8/FLAG0446a9675 [2022-03-18 21:10:56,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a9976b0/f83267dd1ae74618af8b3dd95df42bc8 [2022-03-18 21:10:56,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:10:56,398 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:10:56,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:10:56,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:10:56,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:10:56,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a32745d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56, skipping insertion in model container [2022-03-18 21:10:56,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:10:56,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:10:56,763 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.10.i.cil-1.c[73581,73594] [2022-03-18 21:10:56,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:10:56,781 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:10:56,865 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.10.i.cil-1.c[73581,73594] [2022-03-18 21:10:56,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:10:56,879 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:10:56,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56 WrapperNode [2022-03-18 21:10:56,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:10:56,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:10:56,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:10:56,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:10:56,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:10:56,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:10:56,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:10:56,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:10:56,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (1/1) ... [2022-03-18 21:10:56,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:10:56,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:10:56,986 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) [2022-03-18 21:10:57,005 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 [2022-03-18 21:10:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:10:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:10:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:10:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 21:10:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 21:10:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:10:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 21:10:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 21:10:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 21:10:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 21:10:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:10:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:10:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:10:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:10:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 21:10:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:10:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:10:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 21:10:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:10:57,123 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:10:57,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:10:57,749 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:10:58,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 21:10:58,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 21:10:58,096 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:10:58,102 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:10:58,102 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:10:58,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:10:58 BoogieIcfgContainer [2022-03-18 21:10:58,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:10:58,104 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:10:58,104 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:10:58,112 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:10:58,114 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:10:58" (1/1) ... [2022-03-18 21:10:58,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:10:58 BasicIcfg [2022-03-18 21:10:58,166 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:10:58,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:10:58,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:10:58,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:10:58,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:10:56" (1/4) ... [2022-03-18 21:10:58,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c01bce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:10:58, skipping insertion in model container [2022-03-18 21:10:58,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:10:56" (2/4) ... [2022-03-18 21:10:58,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c01bce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:10:58, skipping insertion in model container [2022-03-18 21:10:58,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:10:58" (3/4) ... [2022-03-18 21:10:58,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c01bce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:10:58, skipping insertion in model container [2022-03-18 21:10:58,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:10:58" (4/4) ... [2022-03-18 21:10:58,186 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.cJordan [2022-03-18 21:10:58,189 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:10:58,190 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:10:58,222 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:10:58,227 INFO L340 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 [2022-03-18 21:10:58,227 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:10:58,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 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) [2022-03-18 21:10:58,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-18 21:10:58,261 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:58,261 INFO L500 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] [2022-03-18 21:10:58,262 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:58,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:58,266 INFO L85 PathProgramCache]: Analyzing trace with hash 645838238, now seen corresponding path program 1 times [2022-03-18 21:10:58,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:58,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324458007] [2022-03-18 21:10:58,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:58,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:58,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:58,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:58,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324458007] [2022-03-18 21:10:58,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324458007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:58,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:58,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:58,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218851226] [2022-03-18 21:10:58,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:58,776 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:58,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:58,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:58,819 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 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) [2022-03-18 21:11:01,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:01,103 INFO L93 Difference]: Finished difference Result 283 states and 469 transitions. [2022-03-18 21:11:01,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:01,121 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 [2022-03-18 21:11:01,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:01,127 INFO L225 Difference]: With dead ends: 283 [2022-03-18 21:11:01,128 INFO L226 Difference]: Without dead ends: 257 [2022-03-18 21:11:01,129 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:01,131 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 150 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:01,131 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 451 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 21:11:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-18 21:11:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 180. [2022-03-18 21:11:01,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6) internal successors, (280), 175 states have internal predecessors, (280), 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) [2022-03-18 21:11:01,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 284 transitions. [2022-03-18 21:11:01,174 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 284 transitions. Word has length 49 [2022-03-18 21:11:01,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:01,174 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 284 transitions. [2022-03-18 21:11:01,174 INFO L479 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) [2022-03-18 21:11:01,175 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 284 transitions. [2022-03-18 21:11:01,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 21:11:01,176 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:01,176 INFO L500 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] [2022-03-18 21:11:01,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:11:01,176 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:01,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:01,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1424421714, now seen corresponding path program 1 times [2022-03-18 21:11:01,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:01,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61355151] [2022-03-18 21:11:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:01,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:11:01,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:01,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61355151] [2022-03-18 21:11:01,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61355151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:01,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:01,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:01,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689696409] [2022-03-18 21:11:01,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:01,359 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:01,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:01,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:01,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:01,359 INFO L87 Difference]: Start difference. First operand 180 states and 284 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) [2022-03-18 21:11:03,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:05,133 INFO L93 Difference]: Finished difference Result 296 states and 463 transitions. [2022-03-18 21:11:05,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:05,133 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 [2022-03-18 21:11:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:05,135 INFO L225 Difference]: With dead ends: 296 [2022-03-18 21:11:05,135 INFO L226 Difference]: Without dead ends: 296 [2022-03-18 21:11:05,136 INFO L911 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 [2022-03-18 21:11:05,136 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:05,137 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:11:05,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-03-18 21:11:05,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 220. [2022-03-18 21:11:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.6465116279069767) internal successors, (354), 215 states have internal predecessors, (354), 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) [2022-03-18 21:11:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 358 transitions. [2022-03-18 21:11:05,152 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 358 transitions. Word has length 50 [2022-03-18 21:11:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:05,152 INFO L478 AbstractCegarLoop]: Abstraction has 220 states and 358 transitions. [2022-03-18 21:11:05,152 INFO L479 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) [2022-03-18 21:11:05,153 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 358 transitions. [2022-03-18 21:11:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-18 21:11:05,158 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:05,158 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:05,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:11:05,158 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:05,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1123828743, now seen corresponding path program 1 times [2022-03-18 21:11:05,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:05,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379553421] [2022-03-18 21:11:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-18 21:11:05,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:05,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379553421] [2022-03-18 21:11:05,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379553421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:05,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:05,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:05,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219386179] [2022-03-18 21:11:05,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:05,293 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:05,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:05,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:05,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:05,294 INFO L87 Difference]: Start difference. First operand 220 states and 358 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) [2022-03-18 21:11:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:08,131 INFO L93 Difference]: Finished difference Result 248 states and 398 transitions. [2022-03-18 21:11:08,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:08,131 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 78 [2022-03-18 21:11:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:08,133 INFO L225 Difference]: With dead ends: 248 [2022-03-18 21:11:08,134 INFO L226 Difference]: Without dead ends: 248 [2022-03-18 21:11:08,134 INFO L911 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 [2022-03-18 21:11:08,136 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:08,141 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 469 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 21:11:08,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-18 21:11:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-03-18 21:11:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6504424778761062) internal successors, (373), 226 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 377 transitions. [2022-03-18 21:11:08,151 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 377 transitions. Word has length 78 [2022-03-18 21:11:08,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:08,151 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 377 transitions. [2022-03-18 21:11:08,152 INFO L479 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) [2022-03-18 21:11:08,152 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 377 transitions. [2022-03-18 21:11:08,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-18 21:11:08,153 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:08,153 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:08,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:11:08,153 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:08,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:08,154 INFO L85 PathProgramCache]: Analyzing trace with hash 959141718, now seen corresponding path program 1 times [2022-03-18 21:11:08,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:08,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121663930] [2022-03-18 21:11:08,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:08,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:08,287 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:08,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:08,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121663930] [2022-03-18 21:11:08,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121663930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:08,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:08,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:08,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071781981] [2022-03-18 21:11:08,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:08,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:08,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:08,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:08,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:08,293 INFO L87 Difference]: Start difference. First operand 231 states and 377 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) [2022-03-18 21:11:09,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:11,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:13,744 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 [] [2022-03-18 21:11:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:14,141 INFO L93 Difference]: Finished difference Result 248 states and 397 transitions. [2022-03-18 21:11:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:14,142 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 91 [2022-03-18 21:11:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:14,143 INFO L225 Difference]: With dead ends: 248 [2022-03-18 21:11:14,143 INFO L226 Difference]: Without dead ends: 248 [2022-03-18 21:11:14,143 INFO L911 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 [2022-03-18 21:11:14,144 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 24 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:14,145 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 471 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-18 21:11:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-18 21:11:14,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-03-18 21:11:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6460176991150441) internal successors, (372), 226 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 376 transitions. [2022-03-18 21:11:14,151 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 376 transitions. Word has length 91 [2022-03-18 21:11:14,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:14,151 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 376 transitions. [2022-03-18 21:11:14,151 INFO L479 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) [2022-03-18 21:11:14,151 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 376 transitions. [2022-03-18 21:11:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-18 21:11:14,152 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:14,153 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:14,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:11:14,153 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:14,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1315439647, now seen corresponding path program 1 times [2022-03-18 21:11:14,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:14,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928199723] [2022-03-18 21:11:14,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:14,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:14,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:14,277 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:14,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:14,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928199723] [2022-03-18 21:11:14,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928199723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:14,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:14,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:14,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052768432] [2022-03-18 21:11:14,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:14,278 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:14,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:14,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:14,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:14,279 INFO L87 Difference]: Start difference. First operand 231 states and 376 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) [2022-03-18 21:11:15,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:17,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:20,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:20,461 INFO L93 Difference]: Finished difference Result 247 states and 395 transitions. [2022-03-18 21:11:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:20,461 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 92 [2022-03-18 21:11:20,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:20,462 INFO L225 Difference]: With dead ends: 247 [2022-03-18 21:11:20,463 INFO L226 Difference]: Without dead ends: 247 [2022-03-18 21:11:20,463 INFO L911 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 [2022-03-18 21:11:20,463 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:20,464 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 21:11:20,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-03-18 21:11:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 231. [2022-03-18 21:11:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6415929203539823) internal successors, (371), 226 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 375 transitions. [2022-03-18 21:11:20,469 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 375 transitions. Word has length 92 [2022-03-18 21:11:20,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:20,469 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 375 transitions. [2022-03-18 21:11:20,469 INFO L479 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) [2022-03-18 21:11:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 375 transitions. [2022-03-18 21:11:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-18 21:11:20,470 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:20,470 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:20,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:11:20,470 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:20,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:20,478 INFO L85 PathProgramCache]: Analyzing trace with hash 660427777, now seen corresponding path program 1 times [2022-03-18 21:11:20,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:20,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512114562] [2022-03-18 21:11:20,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:20,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:20,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:20,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512114562] [2022-03-18 21:11:20,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512114562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:20,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:20,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:20,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601584901] [2022-03-18 21:11:20,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:20,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:20,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:20,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:20,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:20,645 INFO L87 Difference]: Start difference. First operand 231 states and 375 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) [2022-03-18 21:11:21,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:23,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:25,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:26,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:26,245 INFO L93 Difference]: Finished difference Result 307 states and 477 transitions. [2022-03-18 21:11:26,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:26,245 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 92 [2022-03-18 21:11:26,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:26,247 INFO L225 Difference]: With dead ends: 307 [2022-03-18 21:11:26,247 INFO L226 Difference]: Without dead ends: 307 [2022-03-18 21:11:26,247 INFO L911 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 [2022-03-18 21:11:26,247 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 144 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:26,247 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:11:26,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-18 21:11:26,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-03-18 21:11:26,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6283185840707965) internal successors, (368), 226 states have internal predecessors, (368), 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) [2022-03-18 21:11:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 372 transitions. [2022-03-18 21:11:26,252 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 372 transitions. Word has length 92 [2022-03-18 21:11:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:26,253 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 372 transitions. [2022-03-18 21:11:26,253 INFO L479 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) [2022-03-18 21:11:26,253 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 372 transitions. [2022-03-18 21:11:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-18 21:11:26,254 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:26,254 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:26,254 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:11:26,254 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash -817795007, now seen corresponding path program 1 times [2022-03-18 21:11:26,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:26,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061221447] [2022-03-18 21:11:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:26,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:26,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:26,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061221447] [2022-03-18 21:11:26,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061221447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:26,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:26,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:26,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360841178] [2022-03-18 21:11:26,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:26,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:26,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:26,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:26,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:26,348 INFO L87 Difference]: Start difference. First operand 231 states and 372 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) [2022-03-18 21:11:29,283 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 [] [2022-03-18 21:11:31,217 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 [] [2022-03-18 21:11:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:31,521 INFO L93 Difference]: Finished difference Result 245 states and 389 transitions. [2022-03-18 21:11:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:31,521 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 92 [2022-03-18 21:11:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:31,522 INFO L225 Difference]: With dead ends: 245 [2022-03-18 21:11:31,522 INFO L226 Difference]: Without dead ends: 245 [2022-03-18 21:11:31,522 INFO L911 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 [2022-03-18 21:11:31,523 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:31,523 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:11:31,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-03-18 21:11:31,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 231. [2022-03-18 21:11:31,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6238938053097345) internal successors, (367), 226 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) [2022-03-18 21:11:31,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 371 transitions. [2022-03-18 21:11:31,529 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 371 transitions. Word has length 92 [2022-03-18 21:11:31,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:31,530 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 371 transitions. [2022-03-18 21:11:31,530 INFO L479 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) [2022-03-18 21:11:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 371 transitions. [2022-03-18 21:11:31,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-18 21:11:31,530 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:31,531 INFO L500 BasicCegarLoop]: trace histogram [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, 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] [2022-03-18 21:11:31,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:11:31,531 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:31,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:31,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1735376737, now seen corresponding path program 1 times [2022-03-18 21:11:31,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:31,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445773191] [2022-03-18 21:11:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:31,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:31,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:31,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445773191] [2022-03-18 21:11:31,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445773191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:31,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:31,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:31,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083540637] [2022-03-18 21:11:31,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:31,627 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:31,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:31,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:31,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:31,628 INFO L87 Difference]: Start difference. First operand 231 states and 371 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) [2022-03-18 21:11:33,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:35,267 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 [] [2022-03-18 21:11:36,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:36,001 INFO L93 Difference]: Finished difference Result 244 states and 387 transitions. [2022-03-18 21:11:36,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:36,002 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 92 [2022-03-18 21:11:36,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:36,003 INFO L225 Difference]: With dead ends: 244 [2022-03-18 21:11:36,003 INFO L226 Difference]: Without dead ends: 244 [2022-03-18 21:11:36,003 INFO L911 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 [2022-03-18 21:11:36,004 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 18 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:36,004 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 21:11:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-03-18 21:11:36,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-03-18 21:11:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6194690265486726) internal successors, (366), 226 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 370 transitions. [2022-03-18 21:11:36,026 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 370 transitions. Word has length 92 [2022-03-18 21:11:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:36,027 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 370 transitions. [2022-03-18 21:11:36,027 INFO L479 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) [2022-03-18 21:11:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 370 transitions. [2022-03-18 21:11:36,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-18 21:11:36,029 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:36,029 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:36,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:11:36,029 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:36,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:36,030 INFO L85 PathProgramCache]: Analyzing trace with hash 471690038, now seen corresponding path program 1 times [2022-03-18 21:11:36,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:36,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276244508] [2022-03-18 21:11:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:36,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:36,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:36,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:36,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276244508] [2022-03-18 21:11:36,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276244508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:36,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:36,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:36,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752864711] [2022-03-18 21:11:36,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:36,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:36,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:36,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:36,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:36,133 INFO L87 Difference]: Start difference. First operand 231 states and 370 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) [2022-03-18 21:11:38,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:39,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:39,187 INFO L93 Difference]: Finished difference Result 244 states and 386 transitions. [2022-03-18 21:11:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:39,188 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 93 [2022-03-18 21:11:39,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:39,189 INFO L225 Difference]: With dead ends: 244 [2022-03-18 21:11:39,189 INFO L226 Difference]: Without dead ends: 244 [2022-03-18 21:11:39,190 INFO L911 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 [2022-03-18 21:11:39,190 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:39,190 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 21:11:39,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-03-18 21:11:39,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-03-18 21:11:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6150442477876106) internal successors, (365), 226 states have internal predecessors, (365), 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) [2022-03-18 21:11:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 369 transitions. [2022-03-18 21:11:39,194 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 369 transitions. Word has length 93 [2022-03-18 21:11:39,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:39,194 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 369 transitions. [2022-03-18 21:11:39,194 INFO L479 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) [2022-03-18 21:11:39,194 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 369 transitions. [2022-03-18 21:11:39,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-18 21:11:39,195 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:39,195 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:39,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:11:39,195 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:39,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:39,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1910970971, now seen corresponding path program 1 times [2022-03-18 21:11:39,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:39,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892055792] [2022-03-18 21:11:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:39,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:39,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:39,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892055792] [2022-03-18 21:11:39,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892055792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:39,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:39,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:39,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969788191] [2022-03-18 21:11:39,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:39,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:39,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:39,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:39,295 INFO L87 Difference]: Start difference. First operand 231 states and 369 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:40,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:41,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:44,393 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 [] [2022-03-18 21:11:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:44,827 INFO L93 Difference]: Finished difference Result 307 states and 471 transitions. [2022-03-18 21:11:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:44,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-18 21:11:44,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:44,829 INFO L225 Difference]: With dead ends: 307 [2022-03-18 21:11:44,829 INFO L226 Difference]: Without dead ends: 307 [2022-03-18 21:11:44,829 INFO L911 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 [2022-03-18 21:11:44,829 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:44,830 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:11:44,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-18 21:11:44,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-03-18 21:11:44,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6017699115044248) internal successors, (362), 226 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 366 transitions. [2022-03-18 21:11:44,834 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 366 transitions. Word has length 94 [2022-03-18 21:11:44,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:44,834 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 366 transitions. [2022-03-18 21:11:44,834 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:44,834 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 366 transitions. [2022-03-18 21:11:44,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-18 21:11:44,835 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:44,835 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:44,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:11:44,835 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:44,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:44,835 INFO L85 PathProgramCache]: Analyzing trace with hash -157861543, now seen corresponding path program 1 times [2022-03-18 21:11:44,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:44,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149646801] [2022-03-18 21:11:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:44,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:11:44,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:44,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149646801] [2022-03-18 21:11:44,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149646801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:44,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:44,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:44,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839304960] [2022-03-18 21:11:44,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:44,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:44,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:44,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:44,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:44,938 INFO L87 Difference]: Start difference. First operand 231 states and 366 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:47,907 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 [] [2022-03-18 21:11:50,067 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 [] [2022-03-18 21:11:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:50,517 INFO L93 Difference]: Finished difference Result 307 states and 468 transitions. [2022-03-18 21:11:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:50,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 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 [2022-03-18 21:11:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:50,518 INFO L225 Difference]: With dead ends: 307 [2022-03-18 21:11:50,519 INFO L226 Difference]: Without dead ends: 307 [2022-03-18 21:11:50,519 INFO L911 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 [2022-03-18 21:11:50,519 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:50,519 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:11:50,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-18 21:11:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-03-18 21:11:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5884955752212389) internal successors, (359), 226 states have internal predecessors, (359), 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) [2022-03-18 21:11:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 363 transitions. [2022-03-18 21:11:50,524 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 363 transitions. Word has length 95 [2022-03-18 21:11:50,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:50,524 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 363 transitions. [2022-03-18 21:11:50,524 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:50,524 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 363 transitions. [2022-03-18 21:11:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-18 21:11:50,525 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:50,525 INFO L500 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] [2022-03-18 21:11:50,525 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:11:50,525 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:50,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash -774763640, now seen corresponding path program 1 times [2022-03-18 21:11:50,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:50,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143820707] [2022-03-18 21:11:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:50,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:11:50,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:50,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143820707] [2022-03-18 21:11:50,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143820707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:50,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:50,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:50,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064506114] [2022-03-18 21:11:50,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:50,625 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:50,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:50,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:50,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:50,625 INFO L87 Difference]: Start difference. First operand 231 states and 363 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:51,913 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 [] [2022-03-18 21:11:53,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:55,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:55,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:55,784 INFO L93 Difference]: Finished difference Result 383 states and 602 transitions. [2022-03-18 21:11:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:55,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 [2022-03-18 21:11:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:55,786 INFO L225 Difference]: With dead ends: 383 [2022-03-18 21:11:55,786 INFO L226 Difference]: Without dead ends: 383 [2022-03-18 21:11:55,786 INFO L911 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 [2022-03-18 21:11:55,787 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 121 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:55,787 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 342 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 21:11:55,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-03-18 21:11:55,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 295. [2022-03-18 21:11:55,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.6172413793103448) internal successors, (469), 290 states have internal predecessors, (469), 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) [2022-03-18 21:11:55,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 473 transitions. [2022-03-18 21:11:55,792 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 473 transitions. Word has length 95 [2022-03-18 21:11:55,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:55,792 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 473 transitions. [2022-03-18 21:11:55,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 473 transitions. [2022-03-18 21:11:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-18 21:11:55,793 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:55,793 INFO L500 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, 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] [2022-03-18 21:11:55,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:11:55,793 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:55,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:55,793 INFO L85 PathProgramCache]: Analyzing trace with hash -390530396, now seen corresponding path program 1 times [2022-03-18 21:11:55,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:55,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880591443] [2022-03-18 21:11:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:55,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-18 21:11:55,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:55,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880591443] [2022-03-18 21:11:55,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880591443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:55,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:55,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:55,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668449639] [2022-03-18 21:11:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:55,874 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:55,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:55,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:55,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:55,875 INFO L87 Difference]: Start difference. First operand 295 states and 473 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) [2022-03-18 21:11:57,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:59,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:01,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:01,364 INFO L93 Difference]: Finished difference Result 338 states and 535 transitions. [2022-03-18 21:12:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:01,365 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 100 [2022-03-18 21:12:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:01,366 INFO L225 Difference]: With dead ends: 338 [2022-03-18 21:12:01,366 INFO L226 Difference]: Without dead ends: 338 [2022-03-18 21:12:01,366 INFO L911 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 [2022-03-18 21:12:01,366 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 31 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:01,366 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 491 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:12:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-18 21:12:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-03-18 21:12:01,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6153846153846154) internal successors, (504), 312 states have internal predecessors, (504), 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) [2022-03-18 21:12:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 508 transitions. [2022-03-18 21:12:01,371 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 508 transitions. Word has length 100 [2022-03-18 21:12:01,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:01,371 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 508 transitions. [2022-03-18 21:12:01,371 INFO L479 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) [2022-03-18 21:12:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 508 transitions. [2022-03-18 21:12:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-18 21:12:01,372 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:01,372 INFO L500 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] [2022-03-18 21:12:01,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:12:01,372 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:01,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1693682037, now seen corresponding path program 1 times [2022-03-18 21:12:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:01,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949030620] [2022-03-18 21:12:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:01,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:12:01,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:01,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949030620] [2022-03-18 21:12:01,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949030620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:01,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:01,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:01,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104951046] [2022-03-18 21:12:01,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:01,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:01,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:01,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:01,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:01,470 INFO L87 Difference]: Start difference. First operand 317 states and 508 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) [2022-03-18 21:12:02,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:05,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:05,879 INFO L93 Difference]: Finished difference Result 338 states and 534 transitions. [2022-03-18 21:12:05,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:05,879 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 [2022-03-18 21:12:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:05,881 INFO L225 Difference]: With dead ends: 338 [2022-03-18 21:12:05,881 INFO L226 Difference]: Without dead ends: 338 [2022-03-18 21:12:05,881 INFO L911 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 [2022-03-18 21:12:05,881 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 36 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:05,881 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 491 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 21:12:05,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-18 21:12:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-03-18 21:12:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6121794871794872) internal successors, (503), 312 states have internal predecessors, (503), 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) [2022-03-18 21:12:05,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 507 transitions. [2022-03-18 21:12:05,886 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 507 transitions. Word has length 108 [2022-03-18 21:12:05,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:05,886 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 507 transitions. [2022-03-18 21:12:05,886 INFO L479 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) [2022-03-18 21:12:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 507 transitions. [2022-03-18 21:12:05,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-18 21:12:05,887 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:05,887 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 21:12:05,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:12:05,887 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash 478118402, now seen corresponding path program 1 times [2022-03-18 21:12:05,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:05,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593226040] [2022-03-18 21:12:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:05,972 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:12:05,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:05,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593226040] [2022-03-18 21:12:05,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593226040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:05,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:05,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:05,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628514460] [2022-03-18 21:12:05,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:05,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:05,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:05,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:05,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:05,973 INFO L87 Difference]: Start difference. First operand 317 states and 507 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:07,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:09,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:10,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:12,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:12,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:12,706 INFO L93 Difference]: Finished difference Result 336 states and 531 transitions. [2022-03-18 21:12:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:12,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-18 21:12:12,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:12,707 INFO L225 Difference]: With dead ends: 336 [2022-03-18 21:12:12,707 INFO L226 Difference]: Without dead ends: 336 [2022-03-18 21:12:12,708 INFO L911 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 [2022-03-18 21:12:12,708 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 34 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:12,708 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 495 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 21:12:12,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-18 21:12:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 317. [2022-03-18 21:12:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.608974358974359) internal successors, (502), 312 states have internal predecessors, (502), 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) [2022-03-18 21:12:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 506 transitions. [2022-03-18 21:12:12,713 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 506 transitions. Word has length 109 [2022-03-18 21:12:12,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:12,713 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 506 transitions. [2022-03-18 21:12:12,713 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:12,713 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 506 transitions. [2022-03-18 21:12:12,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-18 21:12:12,714 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:12,714 INFO L500 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:12,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:12:12,714 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:12,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:12,714 INFO L85 PathProgramCache]: Analyzing trace with hash -733726518, now seen corresponding path program 1 times [2022-03-18 21:12:12,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:12,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053287986] [2022-03-18 21:12:12,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:12,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:12,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-18 21:12:12,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:12,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053287986] [2022-03-18 21:12:12,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053287986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:12,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:12,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:12,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275779956] [2022-03-18 21:12:12,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:12,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:12,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:12,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:12,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:12,936 INFO L87 Difference]: Start difference. First operand 317 states and 506 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) [2022-03-18 21:12:15,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:16,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:16,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:16,978 INFO L93 Difference]: Finished difference Result 346 states and 545 transitions. [2022-03-18 21:12:16,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:16,978 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 114 [2022-03-18 21:12:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:16,979 INFO L225 Difference]: With dead ends: 346 [2022-03-18 21:12:16,980 INFO L226 Difference]: Without dead ends: 346 [2022-03-18 21:12:16,980 INFO L911 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 [2022-03-18 21:12:16,980 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 19 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:16,980 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 556 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 21:12:16,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-03-18 21:12:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 333. [2022-03-18 21:12:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.600609756097561) internal successors, (525), 328 states have internal predecessors, (525), 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) [2022-03-18 21:12:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 529 transitions. [2022-03-18 21:12:16,985 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 529 transitions. Word has length 114 [2022-03-18 21:12:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:16,985 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 529 transitions. [2022-03-18 21:12:16,985 INFO L479 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) [2022-03-18 21:12:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 529 transitions. [2022-03-18 21:12:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-18 21:12:16,986 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:16,986 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:16,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:12:16,986 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:16,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:16,986 INFO L85 PathProgramCache]: Analyzing trace with hash -935680694, now seen corresponding path program 1 times [2022-03-18 21:12:16,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:16,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310968880] [2022-03-18 21:12:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:16,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-18 21:12:17,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:17,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310968880] [2022-03-18 21:12:17,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310968880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:17,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:17,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:17,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030942416] [2022-03-18 21:12:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:17,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:17,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:17,181 INFO L87 Difference]: Start difference. First operand 333 states and 529 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:19,195 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 [] [2022-03-18 21:12:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:19,638 INFO L93 Difference]: Finished difference Result 408 states and 628 transitions. [2022-03-18 21:12:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:19,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-18 21:12:19,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:19,640 INFO L225 Difference]: With dead ends: 408 [2022-03-18 21:12:19,640 INFO L226 Difference]: Without dead ends: 408 [2022-03-18 21:12:19,640 INFO L911 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 [2022-03-18 21:12:19,641 INFO L912 BasicCegarLoop]: 114 mSDtfsCounter, 136 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:19,641 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 332 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:12:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-03-18 21:12:19,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 333. [2022-03-18 21:12:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5853658536585367) internal successors, (520), 328 states have internal predecessors, (520), 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) [2022-03-18 21:12:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 524 transitions. [2022-03-18 21:12:19,646 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 524 transitions. Word has length 114 [2022-03-18 21:12:19,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:19,646 INFO L478 AbstractCegarLoop]: Abstraction has 333 states and 524 transitions. [2022-03-18 21:12:19,646 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:19,646 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 524 transitions. [2022-03-18 21:12:19,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-18 21:12:19,647 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:19,647 INFO L500 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:19,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 21:12:19,647 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:19,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:19,648 INFO L85 PathProgramCache]: Analyzing trace with hash 830257820, now seen corresponding path program 1 times [2022-03-18 21:12:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:19,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417666416] [2022-03-18 21:12:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-18 21:12:19,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:19,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417666416] [2022-03-18 21:12:19,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417666416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:19,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:19,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:12:19,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502972336] [2022-03-18 21:12:19,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:19,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:12:19,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:19,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:12:19,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:19,778 INFO L87 Difference]: Start difference. First operand 333 states and 524 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) [2022-03-18 21:12:20,941 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 [] [2022-03-18 21:12:22,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:24,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:26,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:28,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:29,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:29,442 INFO L93 Difference]: Finished difference Result 342 states and 535 transitions. [2022-03-18 21:12:29,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:12:29,442 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 115 [2022-03-18 21:12:29,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:29,443 INFO L225 Difference]: With dead ends: 342 [2022-03-18 21:12:29,443 INFO L226 Difference]: Without dead ends: 342 [2022-03-18 21:12:29,443 INFO L911 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 [2022-03-18 21:12:29,444 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:29,444 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 617 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 429 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2022-03-18 21:12:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-03-18 21:12:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-03-18 21:12:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.57566765578635) internal successors, (531), 337 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:29,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 535 transitions. [2022-03-18 21:12:29,449 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 535 transitions. Word has length 115 [2022-03-18 21:12:29,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:29,449 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 535 transitions. [2022-03-18 21:12:29,449 INFO L479 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) [2022-03-18 21:12:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 535 transitions. [2022-03-18 21:12:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-18 21:12:29,450 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:29,450 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:29,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 21:12:29,450 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:29,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1810119759, now seen corresponding path program 1 times [2022-03-18 21:12:29,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:29,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390744655] [2022-03-18 21:12:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-18 21:12:29,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:29,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390744655] [2022-03-18 21:12:29,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390744655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:29,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:29,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:29,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180694691] [2022-03-18 21:12:29,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:29,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:29,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:29,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:29,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:29,556 INFO L87 Difference]: Start difference. First operand 342 states and 535 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:30,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:33,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:35,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:35,826 INFO L93 Difference]: Finished difference Result 359 states and 556 transitions. [2022-03-18 21:12:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:35,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 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 116 [2022-03-18 21:12:35,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:35,828 INFO L225 Difference]: With dead ends: 359 [2022-03-18 21:12:35,828 INFO L226 Difference]: Without dead ends: 359 [2022-03-18 21:12:35,828 INFO L911 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 [2022-03-18 21:12:35,829 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 35 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:35,829 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 499 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-18 21:12:35,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-03-18 21:12:35,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 342. [2022-03-18 21:12:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.572700296735905) internal successors, (530), 337 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 534 transitions. [2022-03-18 21:12:35,833 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 534 transitions. Word has length 116 [2022-03-18 21:12:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:35,834 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 534 transitions. [2022-03-18 21:12:35,834 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 534 transitions. [2022-03-18 21:12:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 21:12:35,835 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:35,835 INFO L500 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] [2022-03-18 21:12:35,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 21:12:35,835 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:35,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash 713638299, now seen corresponding path program 1 times [2022-03-18 21:12:35,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:35,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803472978] [2022-03-18 21:12:35,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:35,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-18 21:12:35,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:35,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803472978] [2022-03-18 21:12:35,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803472978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:35,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:35,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:35,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566748750] [2022-03-18 21:12:35,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:35,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:35,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:35,983 INFO L87 Difference]: Start difference. First operand 342 states and 534 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) [2022-03-18 21:12:39,236 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 [] [2022-03-18 21:12:40,318 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 [] [2022-03-18 21:12:40,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:40,604 INFO L93 Difference]: Finished difference Result 349 states and 543 transitions. [2022-03-18 21:12:40,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:40,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-18 21:12:40,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:40,619 INFO L225 Difference]: With dead ends: 349 [2022-03-18 21:12:40,619 INFO L226 Difference]: Without dead ends: 349 [2022-03-18 21:12:40,620 INFO L911 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 [2022-03-18 21:12:40,631 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:40,631 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 513 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 21:12:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-18 21:12:40,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 342. [2022-03-18 21:12:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.5697329376854599) internal successors, (529), 337 states have internal predecessors, (529), 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) [2022-03-18 21:12:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 533 transitions. [2022-03-18 21:12:40,662 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 533 transitions. Word has length 122 [2022-03-18 21:12:40,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:40,662 INFO L478 AbstractCegarLoop]: Abstraction has 342 states and 533 transitions. [2022-03-18 21:12:40,662 INFO L479 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) [2022-03-18 21:12:40,662 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 533 transitions. [2022-03-18 21:12:40,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 21:12:40,662 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:40,663 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:40,663 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 21:12:40,663 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:40,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1104389438, now seen corresponding path program 1 times [2022-03-18 21:12:40,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:40,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670785246] [2022-03-18 21:12:40,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:40,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:40,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-18 21:12:40,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:40,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670785246] [2022-03-18 21:12:40,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670785246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:40,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:40,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:12:40,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567105144] [2022-03-18 21:12:40,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:40,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:12:40,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:40,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:12:40,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:40,759 INFO L87 Difference]: Start difference. First operand 342 states and 533 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) [2022-03-18 21:12:43,597 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 [] [2022-03-18 21:12:44,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:44,601 INFO L93 Difference]: Finished difference Result 369 states and 568 transitions. [2022-03-18 21:12:44,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:12:44,601 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 122 [2022-03-18 21:12:44,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:44,603 INFO L225 Difference]: With dead ends: 369 [2022-03-18 21:12:44,603 INFO L226 Difference]: Without dead ends: 369 [2022-03-18 21:12:44,603 INFO L911 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 [2022-03-18 21:12:44,603 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:44,604 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 413 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 241 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 21:12:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-03-18 21:12:44,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-03-18 21:12:44,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5494505494505495) internal successors, (564), 364 states have internal predecessors, (564), 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) [2022-03-18 21:12:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 568 transitions. [2022-03-18 21:12:44,608 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 568 transitions. Word has length 122 [2022-03-18 21:12:44,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:44,608 INFO L478 AbstractCegarLoop]: Abstraction has 369 states and 568 transitions. [2022-03-18 21:12:44,608 INFO L479 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) [2022-03-18 21:12:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 568 transitions. [2022-03-18 21:12:44,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 21:12:44,609 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:44,609 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:44,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 21:12:44,609 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2081762659, now seen corresponding path program 1 times [2022-03-18 21:12:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:44,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60905458] [2022-03-18 21:12:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:12:44,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:44,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60905458] [2022-03-18 21:12:44,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60905458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:44,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:44,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:44,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82880407] [2022-03-18 21:12:44,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:44,712 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:44,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:44,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:44,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:44,712 INFO L87 Difference]: Start difference. First operand 369 states and 568 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:46,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:48,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:49,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:50,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:50,035 INFO L93 Difference]: Finished difference Result 494 states and 750 transitions. [2022-03-18 21:12:50,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:50,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-18 21:12:50,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:50,038 INFO L225 Difference]: With dead ends: 494 [2022-03-18 21:12:50,038 INFO L226 Difference]: Without dead ends: 494 [2022-03-18 21:12:50,038 INFO L911 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 [2022-03-18 21:12:50,039 INFO L912 BasicCegarLoop]: 114 mSDtfsCounter, 116 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:50,039 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 332 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 21:12:50,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-03-18 21:12:50,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 406. [2022-03-18 21:12:50,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5610972568578554) internal successors, (626), 401 states have internal predecessors, (626), 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) [2022-03-18 21:12:50,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 630 transitions. [2022-03-18 21:12:50,057 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 630 transitions. Word has length 122 [2022-03-18 21:12:50,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:50,057 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 630 transitions. [2022-03-18 21:12:50,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:50,057 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 630 transitions. [2022-03-18 21:12:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-18 21:12:50,058 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:50,058 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:50,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 21:12:50,058 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:50,059 INFO L85 PathProgramCache]: Analyzing trace with hash 445754168, now seen corresponding path program 1 times [2022-03-18 21:12:50,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:50,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485029876] [2022-03-18 21:12:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:50,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:50,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:12:50,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:50,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485029876] [2022-03-18 21:12:50,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485029876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:50,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:50,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:50,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272836863] [2022-03-18 21:12:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:50,199 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:50,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:50,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:50,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:50,200 INFO L87 Difference]: Start difference. First operand 406 states and 630 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) [2022-03-18 21:12:53,618 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 [] [2022-03-18 21:12:55,644 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 [] [2022-03-18 21:12:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:56,053 INFO L93 Difference]: Finished difference Result 491 states and 744 transitions. [2022-03-18 21:12:56,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:56,053 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 [2022-03-18 21:12:56,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:56,055 INFO L225 Difference]: With dead ends: 491 [2022-03-18 21:12:56,055 INFO L226 Difference]: Without dead ends: 491 [2022-03-18 21:12:56,055 INFO L911 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 [2022-03-18 21:12:56,055 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:56,055 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 352 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-18 21:12:56,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-03-18 21:12:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-03-18 21:12:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5561097256857854) internal successors, (624), 401 states have internal predecessors, (624), 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) [2022-03-18 21:12:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 628 transitions. [2022-03-18 21:12:56,060 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 628 transitions. Word has length 123 [2022-03-18 21:12:56,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:56,060 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 628 transitions. [2022-03-18 21:12:56,060 INFO L479 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) [2022-03-18 21:12:56,060 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 628 transitions. [2022-03-18 21:12:56,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-18 21:12:56,061 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:56,061 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:56,061 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 21:12:56,061 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:56,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:56,062 INFO L85 PathProgramCache]: Analyzing trace with hash -653488844, now seen corresponding path program 1 times [2022-03-18 21:12:56,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:56,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756205495] [2022-03-18 21:12:56,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:56,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:56,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:12:56,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:56,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756205495] [2022-03-18 21:12:56,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756205495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:56,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:56,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:56,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676878218] [2022-03-18 21:12:56,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:56,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:56,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:56,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:56,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:56,155 INFO L87 Difference]: Start difference. First operand 406 states and 628 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:57,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:58,719 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 [] [2022-03-18 21:12:59,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:59,646 INFO L93 Difference]: Finished difference Result 491 states and 739 transitions. [2022-03-18 21:12:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:59,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-18 21:12:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:59,647 INFO L225 Difference]: With dead ends: 491 [2022-03-18 21:12:59,647 INFO L226 Difference]: Without dead ends: 491 [2022-03-18 21:12:59,648 INFO L911 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 [2022-03-18 21:12:59,648 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 136 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:59,648 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 21:12:59,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-03-18 21:12:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-03-18 21:12:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5436408977556109) internal successors, (619), 401 states have internal predecessors, (619), 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) [2022-03-18 21:12:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 623 transitions. [2022-03-18 21:12:59,653 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 623 transitions. Word has length 130 [2022-03-18 21:12:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:59,653 INFO L478 AbstractCegarLoop]: Abstraction has 406 states and 623 transitions. [2022-03-18 21:12:59,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 623 transitions. [2022-03-18 21:12:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 21:12:59,654 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:59,654 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-18 21:12:59,654 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 21:12:59,654 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:59,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:59,654 INFO L85 PathProgramCache]: Analyzing trace with hash 730265123, now seen corresponding path program 1 times [2022-03-18 21:12:59,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:59,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813669429] [2022-03-18 21:12:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:59,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:12:59,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:59,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813669429] [2022-03-18 21:12:59,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813669429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:59,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:59,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:59,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562391458] [2022-03-18 21:12:59,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:59,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:59,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:59,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:59,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:59,790 INFO L87 Difference]: Start difference. First operand 406 states and 623 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:02,208 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 [] [2022-03-18 21:13:04,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:04,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:04,844 INFO L93 Difference]: Finished difference Result 507 states and 769 transitions. [2022-03-18 21:13:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:04,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 [2022-03-18 21:13:04,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:04,846 INFO L225 Difference]: With dead ends: 507 [2022-03-18 21:13:04,846 INFO L226 Difference]: Without dead ends: 507 [2022-03-18 21:13:04,846 INFO L911 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 [2022-03-18 21:13:04,846 INFO L912 BasicCegarLoop]: 176 mSDtfsCounter, 96 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:04,847 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 461 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:13:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-03-18 21:13:04,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 425. [2022-03-18 21:13:04,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 420 states have (on average 1.5357142857142858) internal successors, (645), 420 states have internal predecessors, (645), 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) [2022-03-18 21:13:04,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 649 transitions. [2022-03-18 21:13:04,851 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 649 transitions. Word has length 131 [2022-03-18 21:13:04,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:04,851 INFO L478 AbstractCegarLoop]: Abstraction has 425 states and 649 transitions. [2022-03-18 21:13:04,851 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:04,851 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 649 transitions. [2022-03-18 21:13:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 21:13:04,852 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:04,852 INFO L500 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] [2022-03-18 21:13:04,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 21:13:04,852 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:04,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:04,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1621563087, now seen corresponding path program 1 times [2022-03-18 21:13:04,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:04,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122051941] [2022-03-18 21:13:04,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:04,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:04,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:13:04,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:04,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122051941] [2022-03-18 21:13:04,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122051941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:04,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:04,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:04,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790901870] [2022-03-18 21:13:04,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:04,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:04,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:04,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:04,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:04,957 INFO L87 Difference]: Start difference. First operand 425 states and 649 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) [2022-03-18 21:13:06,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:08,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:09,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:10,020 INFO L93 Difference]: Finished difference Result 550 states and 829 transitions. [2022-03-18 21:13:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:10,021 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 [2022-03-18 21:13:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:10,022 INFO L225 Difference]: With dead ends: 550 [2022-03-18 21:13:10,022 INFO L226 Difference]: Without dead ends: 550 [2022-03-18 21:13:10,022 INFO L911 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 [2022-03-18 21:13:10,023 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:10,023 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 353 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:13:10,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-03-18 21:13:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 468. [2022-03-18 21:13:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 463 states have (on average 1.5442764578833694) internal successors, (715), 463 states have internal predecessors, (715), 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) [2022-03-18 21:13:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 719 transitions. [2022-03-18 21:13:10,028 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 719 transitions. Word has length 131 [2022-03-18 21:13:10,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:10,028 INFO L478 AbstractCegarLoop]: Abstraction has 468 states and 719 transitions. [2022-03-18 21:13:10,028 INFO L479 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) [2022-03-18 21:13:10,028 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 719 transitions. [2022-03-18 21:13:10,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 21:13:10,029 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:10,029 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-18 21:13:10,029 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 21:13:10,029 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:10,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:10,029 INFO L85 PathProgramCache]: Analyzing trace with hash -754790428, now seen corresponding path program 1 times [2022-03-18 21:13:10,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:10,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936551092] [2022-03-18 21:13:10,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:10,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:10,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:13:10,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:10,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936551092] [2022-03-18 21:13:10,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936551092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:10,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:10,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:10,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973220982] [2022-03-18 21:13:10,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:10,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:10,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:10,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:10,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:10,160 INFO L87 Difference]: Start difference. First operand 468 states and 719 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:11,428 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 [] [2022-03-18 21:13:13,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:13,442 INFO L93 Difference]: Finished difference Result 553 states and 829 transitions. [2022-03-18 21:13:13,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:13,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 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 [2022-03-18 21:13:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:13,444 INFO L225 Difference]: With dead ends: 553 [2022-03-18 21:13:13,444 INFO L226 Difference]: Without dead ends: 553 [2022-03-18 21:13:13,444 INFO L911 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 [2022-03-18 21:13:13,444 INFO L912 BasicCegarLoop]: 114 mSDtfsCounter, 135 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:13,445 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 332 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 21:13:13,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-18 21:13:13,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 449. [2022-03-18 21:13:13,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 444 states have (on average 1.5382882882882882) internal successors, (683), 444 states have internal predecessors, (683), 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) [2022-03-18 21:13:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 687 transitions. [2022-03-18 21:13:13,450 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 687 transitions. Word has length 131 [2022-03-18 21:13:13,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:13,450 INFO L478 AbstractCegarLoop]: Abstraction has 449 states and 687 transitions. [2022-03-18 21:13:13,451 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 687 transitions. [2022-03-18 21:13:13,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 21:13:13,452 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:13,452 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:13,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 21:13:13,452 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:13,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:13,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1699130074, now seen corresponding path program 1 times [2022-03-18 21:13:13,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:13,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047730572] [2022-03-18 21:13:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:13,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:13,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:13:13,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:13,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047730572] [2022-03-18 21:13:13,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047730572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:13,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:13,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:13,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023641743] [2022-03-18 21:13:13,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:13,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:13,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:13,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:13,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:13,557 INFO L87 Difference]: Start difference. First operand 449 states and 687 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) [2022-03-18 21:13:14,651 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 [] [2022-03-18 21:13:16,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:18,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:19,805 INFO L93 Difference]: Finished difference Result 543 states and 821 transitions. [2022-03-18 21:13:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:19,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-18 21:13:19,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:19,807 INFO L225 Difference]: With dead ends: 543 [2022-03-18 21:13:19,807 INFO L226 Difference]: Without dead ends: 543 [2022-03-18 21:13:19,807 INFO L911 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 [2022-03-18 21:13:19,808 INFO L912 BasicCegarLoop]: 179 mSDtfsCounter, 61 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:19,808 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 469 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 21:13:19,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-03-18 21:13:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 492. [2022-03-18 21:13:19,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.540041067761807) internal successors, (750), 487 states have internal predecessors, (750), 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) [2022-03-18 21:13:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 754 transitions. [2022-03-18 21:13:19,813 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 754 transitions. Word has length 132 [2022-03-18 21:13:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:19,813 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 754 transitions. [2022-03-18 21:13:19,813 INFO L479 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) [2022-03-18 21:13:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 754 transitions. [2022-03-18 21:13:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 21:13:19,814 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:19,814 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:19,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 21:13:19,814 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:19,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1387919047, now seen corresponding path program 1 times [2022-03-18 21:13:19,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:19,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087369191] [2022-03-18 21:13:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:19,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:19,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:13:19,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:19,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087369191] [2022-03-18 21:13:19,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087369191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:19,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:19,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:19,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647241347] [2022-03-18 21:13:19,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:19,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:19,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:19,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:19,941 INFO L87 Difference]: Start difference. First operand 492 states and 754 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) [2022-03-18 21:13:21,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:22,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:23,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:24,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:24,272 INFO L93 Difference]: Finished difference Result 577 states and 869 transitions. [2022-03-18 21:13:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:24,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-18 21:13:24,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:24,274 INFO L225 Difference]: With dead ends: 577 [2022-03-18 21:13:24,274 INFO L226 Difference]: Without dead ends: 575 [2022-03-18 21:13:24,274 INFO L911 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 [2022-03-18 21:13:24,274 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:24,275 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-18 21:13:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-03-18 21:13:24,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 494. [2022-03-18 21:13:24,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.539877300613497) internal successors, (753), 489 states have internal predecessors, (753), 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) [2022-03-18 21:13:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 757 transitions. [2022-03-18 21:13:24,279 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 757 transitions. Word has length 132 [2022-03-18 21:13:24,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:24,280 INFO L478 AbstractCegarLoop]: Abstraction has 494 states and 757 transitions. [2022-03-18 21:13:24,280 INFO L479 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) [2022-03-18 21:13:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 757 transitions. [2022-03-18 21:13:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-18 21:13:24,280 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:24,281 INFO L500 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] [2022-03-18 21:13:24,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 21:13:24,281 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1680520422, now seen corresponding path program 1 times [2022-03-18 21:13:24,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:24,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119789679] [2022-03-18 21:13:24,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 21:13:24,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:24,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119789679] [2022-03-18 21:13:24,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119789679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:24,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:24,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:24,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948014065] [2022-03-18 21:13:24,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:24,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:24,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:24,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:24,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:24,461 INFO L87 Difference]: Start difference. First operand 494 states and 757 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) [2022-03-18 21:13:27,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:28,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:30,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:31,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:31,354 INFO L93 Difference]: Finished difference Result 535 states and 811 transitions. [2022-03-18 21:13:31,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:31,355 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 [2022-03-18 21:13:31,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:31,356 INFO L225 Difference]: With dead ends: 535 [2022-03-18 21:13:31,356 INFO L226 Difference]: Without dead ends: 535 [2022-03-18 21:13:31,356 INFO L911 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 [2022-03-18 21:13:31,357 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 90 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:31,357 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 493 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 502 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-18 21:13:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-18 21:13:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 494. [2022-03-18 21:13:31,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.5378323108384457) internal successors, (752), 489 states have internal predecessors, (752), 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) [2022-03-18 21:13:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 756 transitions. [2022-03-18 21:13:31,361 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 756 transitions. Word has length 144 [2022-03-18 21:13:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:31,361 INFO L478 AbstractCegarLoop]: Abstraction has 494 states and 756 transitions. [2022-03-18 21:13:31,361 INFO L479 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) [2022-03-18 21:13:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 756 transitions. [2022-03-18 21:13:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-18 21:13:31,362 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:31,362 INFO L500 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] [2022-03-18 21:13:31,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 21:13:31,363 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:31,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:31,363 INFO L85 PathProgramCache]: Analyzing trace with hash 780500646, now seen corresponding path program 1 times [2022-03-18 21:13:31,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:31,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259208037] [2022-03-18 21:13:31,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:31,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:31,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:31,473 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:13:31,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:31,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259208037] [2022-03-18 21:13:31,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259208037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:31,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:31,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:31,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087106097] [2022-03-18 21:13:31,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:31,474 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:31,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:31,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:31,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:31,474 INFO L87 Difference]: Start difference. First operand 494 states and 756 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) [2022-03-18 21:13:35,248 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 [] [2022-03-18 21:13:35,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:35,662 INFO L93 Difference]: Finished difference Result 617 states and 925 transitions. [2022-03-18 21:13:35,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:35,663 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 [2022-03-18 21:13:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:35,664 INFO L225 Difference]: With dead ends: 617 [2022-03-18 21:13:35,664 INFO L226 Difference]: Without dead ends: 617 [2022-03-18 21:13:35,664 INFO L911 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 [2022-03-18 21:13:35,665 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:35,665 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 354 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 21:13:35,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-03-18 21:13:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 524. [2022-03-18 21:13:35,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 519 states have (on average 1.5298651252408477) internal successors, (794), 519 states have internal predecessors, (794), 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) [2022-03-18 21:13:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 798 transitions. [2022-03-18 21:13:35,670 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 798 transitions. Word has length 144 [2022-03-18 21:13:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:35,670 INFO L478 AbstractCegarLoop]: Abstraction has 524 states and 798 transitions. [2022-03-18 21:13:35,670 INFO L479 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) [2022-03-18 21:13:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 798 transitions. [2022-03-18 21:13:35,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-18 21:13:35,671 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:35,671 INFO L500 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] [2022-03-18 21:13:35,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 21:13:35,672 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:35,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash 2086081273, now seen corresponding path program 1 times [2022-03-18 21:13:35,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:35,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977770340] [2022-03-18 21:13:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:35,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 21:13:35,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:35,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977770340] [2022-03-18 21:13:35,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977770340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:35,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:35,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:35,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226315172] [2022-03-18 21:13:35,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:35,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:35,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:35,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:35,759 INFO L87 Difference]: Start difference. First operand 524 states and 798 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) [2022-03-18 21:13:38,604 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 [] [2022-03-18 21:13:39,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:39,053 INFO L93 Difference]: Finished difference Result 607 states and 918 transitions. [2022-03-18 21:13:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:39,053 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 [2022-03-18 21:13:39,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:39,055 INFO L225 Difference]: With dead ends: 607 [2022-03-18 21:13:39,055 INFO L226 Difference]: Without dead ends: 607 [2022-03-18 21:13:39,055 INFO L911 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 [2022-03-18 21:13:39,055 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 91 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:39,055 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 625 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 21:13:39,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-03-18 21:13:39,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 535. [2022-03-18 21:13:39,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.528301886792453) internal successors, (810), 530 states have internal predecessors, (810), 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) [2022-03-18 21:13:39,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 814 transitions. [2022-03-18 21:13:39,075 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 814 transitions. Word has length 144 [2022-03-18 21:13:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:39,076 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 814 transitions. [2022-03-18 21:13:39,076 INFO L479 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) [2022-03-18 21:13:39,076 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 814 transitions. [2022-03-18 21:13:39,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:13:39,076 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:39,077 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2022-03-18 21:13:39,077 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 21:13:39,077 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:39,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:39,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1870256407, now seen corresponding path program 1 times [2022-03-18 21:13:39,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:39,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225932955] [2022-03-18 21:13:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:39,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:39,172 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 21:13:39,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:39,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225932955] [2022-03-18 21:13:39,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225932955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:39,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:39,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:39,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764102659] [2022-03-18 21:13:39,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:39,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:39,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:39,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:39,173 INFO L87 Difference]: Start difference. First operand 535 states and 814 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) [2022-03-18 21:13:41,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:43,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:45,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:45,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:45,890 INFO L93 Difference]: Finished difference Result 606 states and 901 transitions. [2022-03-18 21:13:45,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:45,891 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 145 [2022-03-18 21:13:45,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:45,892 INFO L225 Difference]: With dead ends: 606 [2022-03-18 21:13:45,892 INFO L226 Difference]: Without dead ends: 606 [2022-03-18 21:13:45,892 INFO L911 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 [2022-03-18 21:13:45,893 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 135 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:45,893 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 356 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 21:13:45,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-03-18 21:13:45,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2022-03-18 21:13:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5113207547169811) internal successors, (801), 530 states have internal predecessors, (801), 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) [2022-03-18 21:13:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 805 transitions. [2022-03-18 21:13:45,898 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 805 transitions. Word has length 145 [2022-03-18 21:13:45,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:45,898 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 805 transitions. [2022-03-18 21:13:45,898 INFO L479 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) [2022-03-18 21:13:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 805 transitions. [2022-03-18 21:13:45,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:13:45,900 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:45,900 INFO L500 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] [2022-03-18 21:13:45,900 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 21:13:45,900 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:45,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:45,900 INFO L85 PathProgramCache]: Analyzing trace with hash -390187374, now seen corresponding path program 1 times [2022-03-18 21:13:45,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:45,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525935660] [2022-03-18 21:13:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:45,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:13:46,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:46,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525935660] [2022-03-18 21:13:46,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525935660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:46,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:46,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:46,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771605648] [2022-03-18 21:13:46,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:46,007 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:46,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:46,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:46,008 INFO L87 Difference]: Start difference. First operand 535 states and 805 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) [2022-03-18 21:13:47,101 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 [] [2022-03-18 21:13:48,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:50,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:50,417 INFO L93 Difference]: Finished difference Result 564 states and 844 transitions. [2022-03-18 21:13:50,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:50,417 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 [2022-03-18 21:13:50,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:50,419 INFO L225 Difference]: With dead ends: 564 [2022-03-18 21:13:50,419 INFO L226 Difference]: Without dead ends: 564 [2022-03-18 21:13:50,419 INFO L911 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 [2022-03-18 21:13:50,419 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 59 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:50,420 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 489 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 21:13:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-03-18 21:13:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 535. [2022-03-18 21:13:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.509433962264151) internal successors, (800), 530 states have internal predecessors, (800), 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) [2022-03-18 21:13:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 804 transitions. [2022-03-18 21:13:50,425 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 804 transitions. Word has length 145 [2022-03-18 21:13:50,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:50,425 INFO L478 AbstractCegarLoop]: Abstraction has 535 states and 804 transitions. [2022-03-18 21:13:50,425 INFO L479 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) [2022-03-18 21:13:50,425 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 804 transitions. [2022-03-18 21:13:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:13:50,426 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:50,426 INFO L500 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] [2022-03-18 21:13:50,426 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 21:13:50,426 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:50,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash 410348179, now seen corresponding path program 1 times [2022-03-18 21:13:50,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:50,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915009844] [2022-03-18 21:13:50,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:50,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-18 21:13:50,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:50,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915009844] [2022-03-18 21:13:50,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915009844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:50,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:50,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:50,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826436624] [2022-03-18 21:13:50,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:50,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:50,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:50,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:50,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:50,524 INFO L87 Difference]: Start difference. First operand 535 states and 804 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) [2022-03-18 21:13:53,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:55,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:56,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:56,219 INFO L93 Difference]: Finished difference Result 560 states and 838 transitions. [2022-03-18 21:13:56,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:56,219 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 145 [2022-03-18 21:13:56,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:56,221 INFO L225 Difference]: With dead ends: 560 [2022-03-18 21:13:56,221 INFO L226 Difference]: Without dead ends: 560 [2022-03-18 21:13:56,221 INFO L911 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 [2022-03-18 21:13:56,221 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 25 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:56,221 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 571 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 419 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-18 21:13:56,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-03-18 21:13:56,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 548. [2022-03-18 21:13:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.5064456721915285) internal successors, (818), 543 states have internal predecessors, (818), 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) [2022-03-18 21:13:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 822 transitions. [2022-03-18 21:13:56,226 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 822 transitions. Word has length 145 [2022-03-18 21:13:56,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:56,227 INFO L478 AbstractCegarLoop]: Abstraction has 548 states and 822 transitions. [2022-03-18 21:13:56,227 INFO L479 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) [2022-03-18 21:13:56,247 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 822 transitions. [2022-03-18 21:13:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-18 21:13:56,248 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:56,248 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:56,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 21:13:56,248 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:56,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1815015926, now seen corresponding path program 1 times [2022-03-18 21:13:56,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:56,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177495964] [2022-03-18 21:13:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:56,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:56,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:13:56,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:56,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177495964] [2022-03-18 21:13:56,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177495964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:56,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:56,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:56,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162070952] [2022-03-18 21:13:56,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:56,358 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:56,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:56,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:56,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:56,359 INFO L87 Difference]: Start difference. First operand 548 states and 822 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:58,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:00,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:01,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:01,412 INFO L93 Difference]: Finished difference Result 661 states and 975 transitions. [2022-03-18 21:14:01,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:01,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-18 21:14:01,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:01,414 INFO L225 Difference]: With dead ends: 661 [2022-03-18 21:14:01,414 INFO L226 Difference]: Without dead ends: 661 [2022-03-18 21:14:01,414 INFO L911 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 [2022-03-18 21:14:01,415 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 119 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:01,415 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 356 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:14:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-03-18 21:14:01,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 576. [2022-03-18 21:14:01,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4956217162872154) internal successors, (854), 571 states have internal predecessors, (854), 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) [2022-03-18 21:14:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 858 transitions. [2022-03-18 21:14:01,420 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 858 transitions. Word has length 147 [2022-03-18 21:14:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:01,420 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 858 transitions. [2022-03-18 21:14:01,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 858 transitions. [2022-03-18 21:14:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 21:14:01,421 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:01,421 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:01,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 21:14:01,421 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:01,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1959841828, now seen corresponding path program 1 times [2022-03-18 21:14:01,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:01,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214800550] [2022-03-18 21:14:01,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:01,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:14:01,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:01,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214800550] [2022-03-18 21:14:01,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214800550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:01,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:01,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:01,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690801279] [2022-03-18 21:14:01,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:01,511 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:01,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:01,512 INFO L87 Difference]: Start difference. First operand 576 states and 858 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:02,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:03,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:04,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:04,722 INFO L93 Difference]: Finished difference Result 647 states and 946 transitions. [2022-03-18 21:14:04,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:04,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 21:14:04,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:04,724 INFO L225 Difference]: With dead ends: 647 [2022-03-18 21:14:04,724 INFO L226 Difference]: Without dead ends: 647 [2022-03-18 21:14:04,724 INFO L911 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 [2022-03-18 21:14:04,725 INFO L912 BasicCegarLoop]: 116 mSDtfsCounter, 118 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:04,725 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 336 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 21:14:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-03-18 21:14:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-03-18 21:14:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4816112084063047) internal successors, (846), 571 states have internal predecessors, (846), 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) [2022-03-18 21:14:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 850 transitions. [2022-03-18 21:14:04,730 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 850 transitions. Word has length 148 [2022-03-18 21:14:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:04,730 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 850 transitions. [2022-03-18 21:14:04,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 850 transitions. [2022-03-18 21:14:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:14:04,731 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:04,731 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:04,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 21:14:04,731 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:04,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:04,732 INFO L85 PathProgramCache]: Analyzing trace with hash 180398438, now seen corresponding path program 1 times [2022-03-18 21:14:04,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:04,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172391314] [2022-03-18 21:14:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:04,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:14:04,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:04,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172391314] [2022-03-18 21:14:04,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172391314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:04,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:04,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:04,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016513291] [2022-03-18 21:14:04,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:04,821 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:04,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:04,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:04,822 INFO L87 Difference]: Start difference. First operand 576 states and 850 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) [2022-03-18 21:14:06,828 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 [] [2022-03-18 21:14:07,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:07,197 INFO L93 Difference]: Finished difference Result 597 states and 876 transitions. [2022-03-18 21:14:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:07,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:14:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:07,199 INFO L225 Difference]: With dead ends: 597 [2022-03-18 21:14:07,199 INFO L226 Difference]: Without dead ends: 597 [2022-03-18 21:14:07,199 INFO L911 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 [2022-03-18 21:14:07,199 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 43 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:07,199 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 507 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:14:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-18 21:14:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 576. [2022-03-18 21:14:07,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.479859894921191) internal successors, (845), 571 states have internal predecessors, (845), 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) [2022-03-18 21:14:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 849 transitions. [2022-03-18 21:14:07,207 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 849 transitions. Word has length 154 [2022-03-18 21:14:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:07,207 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 849 transitions. [2022-03-18 21:14:07,207 INFO L479 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) [2022-03-18 21:14:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 849 transitions. [2022-03-18 21:14:07,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-18 21:14:07,208 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:07,208 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:07,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 21:14:07,208 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:07,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash -792787074, now seen corresponding path program 1 times [2022-03-18 21:14:07,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:07,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651235225] [2022-03-18 21:14:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:07,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:07,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:14:07,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:07,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651235225] [2022-03-18 21:14:07,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651235225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:07,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:07,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:07,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265263035] [2022-03-18 21:14:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:07,307 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:07,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:07,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:07,308 INFO L87 Difference]: Start difference. First operand 576 states and 849 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) [2022-03-18 21:14:08,528 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 [] [2022-03-18 21:14:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:10,500 INFO L93 Difference]: Finished difference Result 595 states and 873 transitions. [2022-03-18 21:14:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:10,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-18 21:14:10,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:10,501 INFO L225 Difference]: With dead ends: 595 [2022-03-18 21:14:10,502 INFO L226 Difference]: Without dead ends: 595 [2022-03-18 21:14:10,502 INFO L911 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 [2022-03-18 21:14:10,502 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 40 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:10,502 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 509 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 21:14:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-18 21:14:10,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 576. [2022-03-18 21:14:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.478108581436077) internal successors, (844), 571 states have internal predecessors, (844), 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) [2022-03-18 21:14:10,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 848 transitions. [2022-03-18 21:14:10,507 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 848 transitions. Word has length 155 [2022-03-18 21:14:10,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:10,507 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 848 transitions. [2022-03-18 21:14:10,507 INFO L479 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) [2022-03-18 21:14:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 848 transitions. [2022-03-18 21:14:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-18 21:14:10,508 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:10,508 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:10,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 21:14:10,508 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash -159357064, now seen corresponding path program 1 times [2022-03-18 21:14:10,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:10,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116539757] [2022-03-18 21:14:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:10,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-18 21:14:10,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:10,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116539757] [2022-03-18 21:14:10,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116539757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:10,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:10,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:10,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925211060] [2022-03-18 21:14:10,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:10,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:10,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:10,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:10,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:10,619 INFO L87 Difference]: Start difference. First operand 576 states and 848 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) [2022-03-18 21:14:12,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:14,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:16,334 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 [] [2022-03-18 21:14:16,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:16,747 INFO L93 Difference]: Finished difference Result 647 states and 935 transitions. [2022-03-18 21:14:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:16,748 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 166 [2022-03-18 21:14:16,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:16,749 INFO L225 Difference]: With dead ends: 647 [2022-03-18 21:14:16,749 INFO L226 Difference]: Without dead ends: 647 [2022-03-18 21:14:16,749 INFO L911 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 [2022-03-18 21:14:16,750 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 122 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:16,750 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-18 21:14:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-03-18 21:14:16,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-03-18 21:14:16,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4623467600700526) internal successors, (835), 571 states have internal predecessors, (835), 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) [2022-03-18 21:14:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 839 transitions. [2022-03-18 21:14:16,757 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 839 transitions. Word has length 166 [2022-03-18 21:14:16,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:16,757 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 839 transitions. [2022-03-18 21:14:16,757 INFO L479 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) [2022-03-18 21:14:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 839 transitions. [2022-03-18 21:14:16,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-18 21:14:16,758 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:16,758 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:16,758 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 21:14:16,758 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:16,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1066888727, now seen corresponding path program 1 times [2022-03-18 21:14:16,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:16,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329308879] [2022-03-18 21:14:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:16,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-03-18 21:14:16,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:16,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329308879] [2022-03-18 21:14:16,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329308879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:16,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:16,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:16,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33282905] [2022-03-18 21:14:16,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:16,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:16,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:16,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:16,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:16,855 INFO L87 Difference]: Start difference. First operand 576 states and 839 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:17,895 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 [] [2022-03-18 21:14:21,522 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 [] [2022-03-18 21:14:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:21,894 INFO L93 Difference]: Finished difference Result 641 states and 929 transitions. [2022-03-18 21:14:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:21,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-18 21:14:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:21,896 INFO L225 Difference]: With dead ends: 641 [2022-03-18 21:14:21,896 INFO L226 Difference]: Without dead ends: 641 [2022-03-18 21:14:21,896 INFO L911 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 [2022-03-18 21:14:21,897 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 71 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:21,897 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 583 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:14:21,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-03-18 21:14:21,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 587. [2022-03-18 21:14:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 582 states have (on average 1.4621993127147765) internal successors, (851), 582 states have internal predecessors, (851), 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) [2022-03-18 21:14:21,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 855 transitions. [2022-03-18 21:14:21,901 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 855 transitions. Word has length 166 [2022-03-18 21:14:21,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:21,901 INFO L478 AbstractCegarLoop]: Abstraction has 587 states and 855 transitions. [2022-03-18 21:14:21,901 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:21,902 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 855 transitions. [2022-03-18 21:14:21,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-18 21:14:21,902 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:21,902 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:21,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 21:14:21,903 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:21,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:21,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1119849675, now seen corresponding path program 1 times [2022-03-18 21:14:21,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:21,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274961810] [2022-03-18 21:14:21,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:21,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:22,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-18 21:14:22,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:22,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274961810] [2022-03-18 21:14:22,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274961810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:22,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:22,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:22,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570921915] [2022-03-18 21:14:22,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:22,021 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:22,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:22,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:22,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:22,022 INFO L87 Difference]: Start difference. First operand 587 states and 855 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:23,117 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 [] [2022-03-18 21:14:25,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:26,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:26,623 INFO L93 Difference]: Finished difference Result 616 states and 895 transitions. [2022-03-18 21:14:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:26,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-18 21:14:26,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:26,625 INFO L225 Difference]: With dead ends: 616 [2022-03-18 21:14:26,625 INFO L226 Difference]: Without dead ends: 616 [2022-03-18 21:14:26,626 INFO L911 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 [2022-03-18 21:14:26,626 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 27 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:26,626 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 573 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 21:14:26,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-03-18 21:14:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 602. [2022-03-18 21:14:26,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4606365159128978) internal successors, (872), 597 states have internal predecessors, (872), 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) [2022-03-18 21:14:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 876 transitions. [2022-03-18 21:14:26,631 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 876 transitions. Word has length 167 [2022-03-18 21:14:26,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:26,631 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 876 transitions. [2022-03-18 21:14:26,631 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 876 transitions. [2022-03-18 21:14:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-18 21:14:26,632 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:26,632 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:26,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 21:14:26,632 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:26,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:26,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1663236114, now seen corresponding path program 1 times [2022-03-18 21:14:26,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:26,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818388156] [2022-03-18 21:14:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:26,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-18 21:14:26,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:26,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818388156] [2022-03-18 21:14:26,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818388156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:26,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:26,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:26,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771360246] [2022-03-18 21:14:26,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:26,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:26,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:26,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:26,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:26,727 INFO L87 Difference]: Start difference. First operand 602 states and 876 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) [2022-03-18 21:14:28,652 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 [] [2022-03-18 21:14:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:29,183 INFO L93 Difference]: Finished difference Result 673 states and 963 transitions. [2022-03-18 21:14:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:29,183 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 172 [2022-03-18 21:14:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:29,185 INFO L225 Difference]: With dead ends: 673 [2022-03-18 21:14:29,185 INFO L226 Difference]: Without dead ends: 673 [2022-03-18 21:14:29,185 INFO L911 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 [2022-03-18 21:14:29,186 INFO L912 BasicCegarLoop]: 116 mSDtfsCounter, 120 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:29,186 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 336 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:14:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-03-18 21:14:29,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 602. [2022-03-18 21:14:29,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4455611390284757) internal successors, (863), 597 states have internal predecessors, (863), 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) [2022-03-18 21:14:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 867 transitions. [2022-03-18 21:14:29,212 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 867 transitions. Word has length 172 [2022-03-18 21:14:29,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:29,213 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 867 transitions. [2022-03-18 21:14:29,213 INFO L479 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) [2022-03-18 21:14:29,214 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 867 transitions. [2022-03-18 21:14:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-18 21:14:29,214 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:29,214 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:29,215 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 21:14:29,215 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:29,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:29,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1055786399, now seen corresponding path program 1 times [2022-03-18 21:14:29,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:29,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903941874] [2022-03-18 21:14:29,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:29,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:29,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-18 21:14:29,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:29,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903941874] [2022-03-18 21:14:29,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903941874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:29,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:29,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:14:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036970214] [2022-03-18 21:14:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:29,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:14:29,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:29,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:14:29,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:14:29,351 INFO L87 Difference]: Start difference. First operand 602 states and 867 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) [2022-03-18 21:14:30,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:32,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:34,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:34,471 INFO L93 Difference]: Finished difference Result 1144 states and 1654 transitions. [2022-03-18 21:14:34,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:14:34,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-18 21:14:34,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:34,474 INFO L225 Difference]: With dead ends: 1144 [2022-03-18 21:14:34,474 INFO L226 Difference]: Without dead ends: 1144 [2022-03-18 21:14:34,474 INFO L911 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 [2022-03-18 21:14:34,474 INFO L912 BasicCegarLoop]: 372 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:34,474 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 566 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 21:14:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-03-18 21:14:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2022-03-18 21:14:34,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4486391571553994) internal successors, (1650), 1139 states have internal predecessors, (1650), 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) [2022-03-18 21:14:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1654 transitions. [2022-03-18 21:14:34,482 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1654 transitions. Word has length 172 [2022-03-18 21:14:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:34,483 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1654 transitions. [2022-03-18 21:14:34,483 INFO L479 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) [2022-03-18 21:14:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1654 transitions. [2022-03-18 21:14:34,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-18 21:14:34,486 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:34,486 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:34,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 21:14:34,486 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:34,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:34,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1289488092, now seen corresponding path program 1 times [2022-03-18 21:14:34,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:34,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974703059] [2022-03-18 21:14:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:34,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:34,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-03-18 21:14:34,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:34,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974703059] [2022-03-18 21:14:34,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974703059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:34,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:34,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:34,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479996028] [2022-03-18 21:14:34,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:34,597 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:34,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:34,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:34,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:34,598 INFO L87 Difference]: Start difference. First operand 1144 states and 1654 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) [2022-03-18 21:14:35,801 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 [] [2022-03-18 21:14:37,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:39,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:39,797 INFO L93 Difference]: Finished difference Result 1177 states and 1693 transitions. [2022-03-18 21:14:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:39,797 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 173 [2022-03-18 21:14:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:39,800 INFO L225 Difference]: With dead ends: 1177 [2022-03-18 21:14:39,800 INFO L226 Difference]: Without dead ends: 1177 [2022-03-18 21:14:39,800 INFO L911 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 [2022-03-18 21:14:39,800 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 45 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:39,800 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 525 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:14:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-03-18 21:14:39,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1144. [2022-03-18 21:14:39,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.446883230904302) internal successors, (1648), 1139 states have internal predecessors, (1648), 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) [2022-03-18 21:14:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1652 transitions. [2022-03-18 21:14:39,808 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1652 transitions. Word has length 173 [2022-03-18 21:14:39,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:39,809 INFO L478 AbstractCegarLoop]: Abstraction has 1144 states and 1652 transitions. [2022-03-18 21:14:39,809 INFO L479 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) [2022-03-18 21:14:39,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1652 transitions. [2022-03-18 21:14:39,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-18 21:14:39,810 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:39,810 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:39,810 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 21:14:39,810 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash 434121896, now seen corresponding path program 1 times [2022-03-18 21:14:39,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:39,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925169895] [2022-03-18 21:14:39,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:39,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:14:39,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:39,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925169895] [2022-03-18 21:14:39,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925169895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:39,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:39,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:14:39,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310095814] [2022-03-18 21:14:39,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:39,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:14:39,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:14:39,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:14:39,898 INFO L87 Difference]: Start difference. First operand 1144 states and 1652 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:43,210 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 [] [2022-03-18 21:14:43,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:43,593 INFO L93 Difference]: Finished difference Result 1654 states and 2391 transitions. [2022-03-18 21:14:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:14:43,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-18 21:14:43,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:43,597 INFO L225 Difference]: With dead ends: 1654 [2022-03-18 21:14:43,598 INFO L226 Difference]: Without dead ends: 1654 [2022-03-18 21:14:43,598 INFO L911 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 [2022-03-18 21:14:43,598 INFO L912 BasicCegarLoop]: 373 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:43,598 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 567 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:14:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-03-18 21:14:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2022-03-18 21:14:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1649 states have (on average 1.4475439660400242) internal successors, (2387), 1649 states have internal predecessors, (2387), 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) [2022-03-18 21:14:43,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2391 transitions. [2022-03-18 21:14:43,610 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2391 transitions. Word has length 173 [2022-03-18 21:14:43,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:43,610 INFO L478 AbstractCegarLoop]: Abstraction has 1654 states and 2391 transitions. [2022-03-18 21:14:43,610 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:43,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2391 transitions. [2022-03-18 21:14:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-18 21:14:43,612 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:43,612 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:43,612 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 21:14:43,612 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:43,613 INFO L85 PathProgramCache]: Analyzing trace with hash 201941755, now seen corresponding path program 1 times [2022-03-18 21:14:43,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:43,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102886580] [2022-03-18 21:14:43,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:43,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:43,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:14:43,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:43,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102886580] [2022-03-18 21:14:43,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102886580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:43,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:43,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:14:43,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086680170] [2022-03-18 21:14:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:43,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:14:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:43,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:14:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:14:43,738 INFO L87 Difference]: Start difference. First operand 1654 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:45,018 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 [] [2022-03-18 21:14:46,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:47,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:47,191 INFO L93 Difference]: Finished difference Result 2155 states and 3117 transitions. [2022-03-18 21:14:47,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:14:47,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-18 21:14:47,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:47,204 INFO L225 Difference]: With dead ends: 2155 [2022-03-18 21:14:47,204 INFO L226 Difference]: Without dead ends: 2155 [2022-03-18 21:14:47,204 INFO L911 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 [2022-03-18 21:14:47,205 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:47,205 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 447 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 21:14:47,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2022-03-18 21:14:47,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2155. [2022-03-18 21:14:47,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2150 states have (on average 1.4479069767441861) internal successors, (3113), 2150 states have internal predecessors, (3113), 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) [2022-03-18 21:14:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3117 transitions. [2022-03-18 21:14:47,223 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3117 transitions. Word has length 174 [2022-03-18 21:14:47,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:47,224 INFO L478 AbstractCegarLoop]: Abstraction has 2155 states and 3117 transitions. [2022-03-18 21:14:47,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3117 transitions. [2022-03-18 21:14:47,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-18 21:14:47,226 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:47,226 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:14:47,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 21:14:47,226 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:47,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:47,226 INFO L85 PathProgramCache]: Analyzing trace with hash -222767815, now seen corresponding path program 1 times [2022-03-18 21:14:47,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:47,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489611841] [2022-03-18 21:14:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:47,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-18 21:14:47,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:47,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489611841] [2022-03-18 21:14:47,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489611841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:47,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:47,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:14:47,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183306777] [2022-03-18 21:14:47,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:47,307 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:14:47,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:47,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:14:47,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:14:47,307 INFO L87 Difference]: Start difference. First operand 2155 states and 3117 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:48,755 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 [] [2022-03-18 21:14:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:50,070 INFO L93 Difference]: Finished difference Result 2157 states and 3119 transitions. [2022-03-18 21:14:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:14:50,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-18 21:14:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:50,073 INFO L225 Difference]: With dead ends: 2157 [2022-03-18 21:14:50,073 INFO L226 Difference]: Without dead ends: 2157 [2022-03-18 21:14:50,080 INFO L911 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 [2022-03-18 21:14:50,080 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:50,080 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 21:14:50,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2022-03-18 21:14:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2157. [2022-03-18 21:14:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2152 states have (on average 1.4474907063197027) internal successors, (3115), 2152 states have internal predecessors, (3115), 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) [2022-03-18 21:14:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 3119 transitions. [2022-03-18 21:14:50,096 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 3119 transitions. Word has length 174 [2022-03-18 21:14:50,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:50,096 INFO L478 AbstractCegarLoop]: Abstraction has 2157 states and 3119 transitions. [2022-03-18 21:14:50,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 3119 transitions. [2022-03-18 21:14:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-18 21:14:50,099 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:50,099 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 21:14:50,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 21:14:50,099 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:50,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:50,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1725486435, now seen corresponding path program 1 times [2022-03-18 21:14:50,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:50,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456049100] [2022-03-18 21:14:50,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:50,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-03-18 21:14:50,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:50,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456049100] [2022-03-18 21:14:50,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456049100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:50,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:50,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:50,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873423488] [2022-03-18 21:14:50,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:50,240 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:50,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:50,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:50,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:50,241 INFO L87 Difference]: Start difference. First operand 2157 states and 3119 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:52,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:54,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:55,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:14:55,317 INFO L93 Difference]: Finished difference Result 2414 states and 3466 transitions. [2022-03-18 21:14:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:14:55,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-03-18 21:14:55,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:14:55,320 INFO L225 Difference]: With dead ends: 2414 [2022-03-18 21:14:55,320 INFO L226 Difference]: Without dead ends: 2414 [2022-03-18 21:14:55,320 INFO L911 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 [2022-03-18 21:14:55,320 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 70 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:14:55,321 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 597 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 21:14:55,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-03-18 21:14:55,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2201. [2022-03-18 21:14:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2196 states have (on average 1.447632058287796) internal successors, (3179), 2196 states have internal predecessors, (3179), 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) [2022-03-18 21:14:55,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3183 transitions. [2022-03-18 21:14:55,339 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3183 transitions. Word has length 267 [2022-03-18 21:14:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:14:55,339 INFO L478 AbstractCegarLoop]: Abstraction has 2201 states and 3183 transitions. [2022-03-18 21:14:55,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:55,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3183 transitions. [2022-03-18 21:14:55,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-18 21:14:55,342 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:14:55,342 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 21:14:55,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 21:14:55,342 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:14:55,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:14:55,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1784133777, now seen corresponding path program 1 times [2022-03-18 21:14:55,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:14:55,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18135948] [2022-03-18 21:14:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:14:55,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:14:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:55,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:14:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:14:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-18 21:14:55,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:14:55,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18135948] [2022-03-18 21:14:55,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18135948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:14:55,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:14:55,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:14:55,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312872813] [2022-03-18 21:14:55,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:14:55,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:14:55,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:14:55,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:14:55,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:14:55,488 INFO L87 Difference]: Start difference. First operand 2201 states and 3183 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:14:57,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:14:59,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:00,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:00,395 INFO L93 Difference]: Finished difference Result 2406 states and 3454 transitions. [2022-03-18 21:15:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:00,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 [2022-03-18 21:15:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:00,398 INFO L225 Difference]: With dead ends: 2406 [2022-03-18 21:15:00,398 INFO L226 Difference]: Without dead ends: 2406 [2022-03-18 21:15:00,399 INFO L911 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 [2022-03-18 21:15:00,399 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 48 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:00,399 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 593 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 21:15:00,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-03-18 21:15:00,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2281. [2022-03-18 21:15:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2276 states have (on average 1.4442003514938488) internal successors, (3287), 2276 states have internal predecessors, (3287), 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) [2022-03-18 21:15:00,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3291 transitions. [2022-03-18 21:15:00,418 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3291 transitions. Word has length 268 [2022-03-18 21:15:00,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:00,419 INFO L478 AbstractCegarLoop]: Abstraction has 2281 states and 3291 transitions. [2022-03-18 21:15:00,419 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:00,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3291 transitions. [2022-03-18 21:15:00,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-18 21:15:00,421 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:00,421 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-03-18 21:15:00,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-18 21:15:00,422 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:00,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:00,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1081130711, now seen corresponding path program 1 times [2022-03-18 21:15:00,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:00,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284642432] [2022-03-18 21:15:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:00,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-18 21:15:00,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:00,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284642432] [2022-03-18 21:15:00,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284642432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:00,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:00,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:00,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236167709] [2022-03-18 21:15:00,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:00,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:00,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:00,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:00,560 INFO L87 Difference]: Start difference. First operand 2281 states and 3291 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 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) [2022-03-18 21:15:02,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:04,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:06,105 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 [] [2022-03-18 21:15:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:07,254 INFO L93 Difference]: Finished difference Result 2406 states and 3450 transitions. [2022-03-18 21:15:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:07,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 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 277 [2022-03-18 21:15:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:07,258 INFO L225 Difference]: With dead ends: 2406 [2022-03-18 21:15:07,258 INFO L226 Difference]: Without dead ends: 2406 [2022-03-18 21:15:07,258 INFO L911 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 [2022-03-18 21:15:07,258 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 43 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:07,258 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 591 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 21:15:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-03-18 21:15:07,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2297. [2022-03-18 21:15:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 2292 states have (on average 1.4445898778359512) internal successors, (3311), 2292 states have internal predecessors, (3311), 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) [2022-03-18 21:15:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3315 transitions. [2022-03-18 21:15:07,275 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3315 transitions. Word has length 277 [2022-03-18 21:15:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:07,275 INFO L478 AbstractCegarLoop]: Abstraction has 2297 states and 3315 transitions. [2022-03-18 21:15:07,275 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 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) [2022-03-18 21:15:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3315 transitions. [2022-03-18 21:15:07,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-18 21:15:07,278 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:07,278 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2022-03-18 21:15:07,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-18 21:15:07,279 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1245485029, now seen corresponding path program 1 times [2022-03-18 21:15:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:07,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324425692] [2022-03-18 21:15:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:07,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:07,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:07,415 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-18 21:15:07,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:07,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324425692] [2022-03-18 21:15:07,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324425692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:07,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:07,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:07,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058275568] [2022-03-18 21:15:07,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:07,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:07,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:07,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:07,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:07,418 INFO L87 Difference]: Start difference. First operand 2297 states and 3315 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:10,576 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 [] [2022-03-18 21:15:12,601 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 [] [2022-03-18 21:15:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:13,002 INFO L93 Difference]: Finished difference Result 2398 states and 3438 transitions. [2022-03-18 21:15:13,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:13,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 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 278 [2022-03-18 21:15:13,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:13,006 INFO L225 Difference]: With dead ends: 2398 [2022-03-18 21:15:13,006 INFO L226 Difference]: Without dead ends: 2398 [2022-03-18 21:15:13,006 INFO L911 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 [2022-03-18 21:15:13,006 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 40 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:13,006 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 587 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:15:13,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-03-18 21:15:13,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2301. [2022-03-18 21:15:13,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.443815331010453) internal successors, (3315), 2296 states have internal predecessors, (3315), 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) [2022-03-18 21:15:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3319 transitions. [2022-03-18 21:15:13,049 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3319 transitions. Word has length 278 [2022-03-18 21:15:13,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:13,049 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3319 transitions. [2022-03-18 21:15:13,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3319 transitions. [2022-03-18 21:15:13,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-18 21:15:13,052 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:13,052 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 21:15:13,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-18 21:15:13,052 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:13,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:13,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2131122745, now seen corresponding path program 1 times [2022-03-18 21:15:13,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:13,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318539189] [2022-03-18 21:15:13,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:13,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:13,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-03-18 21:15:13,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:13,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318539189] [2022-03-18 21:15:13,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318539189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:13,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:13,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:13,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350742189] [2022-03-18 21:15:13,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:13,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:13,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:13,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:13,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:13,180 INFO L87 Difference]: Start difference. First operand 2301 states and 3319 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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) [2022-03-18 21:15:14,791 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 [] [2022-03-18 21:15:16,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:18,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:19,298 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 [] [2022-03-18 21:15:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:19,681 INFO L93 Difference]: Finished difference Result 2390 states and 3422 transitions. [2022-03-18 21:15:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:19,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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 296 [2022-03-18 21:15:19,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:19,684 INFO L225 Difference]: With dead ends: 2390 [2022-03-18 21:15:19,684 INFO L226 Difference]: Without dead ends: 2390 [2022-03-18 21:15:19,684 INFO L911 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 [2022-03-18 21:15:19,685 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 47 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:19,685 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 585 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-18 21:15:19,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-18 21:15:19,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2301. [2022-03-18 21:15:19,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4420731707317074) internal successors, (3311), 2296 states have internal predecessors, (3311), 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) [2022-03-18 21:15:19,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3315 transitions. [2022-03-18 21:15:19,701 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3315 transitions. Word has length 296 [2022-03-18 21:15:19,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:19,701 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3315 transitions. [2022-03-18 21:15:19,701 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 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) [2022-03-18 21:15:19,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3315 transitions. [2022-03-18 21:15:19,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-18 21:15:19,703 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:19,704 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:15:19,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-18 21:15:19,704 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:19,704 INFO L85 PathProgramCache]: Analyzing trace with hash 522812222, now seen corresponding path program 1 times [2022-03-18 21:15:19,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:19,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938546223] [2022-03-18 21:15:19,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:19,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-18 21:15:19,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:19,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938546223] [2022-03-18 21:15:19,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938546223] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:15:19,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432379176] [2022-03-18 21:15:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:19,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:15:19,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:15:19,862 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) [2022-03-18 21:15:19,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 21:15:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:20,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-18 21:15:20,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:15:20,991 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:15:20,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:15:21,048 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 21:15:21,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:15:21,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 21:15:21,289 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:15:21,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 21:15:21,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:15:21,476 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 477 proven. 64 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-03-18 21:15:21,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 21:15:21,751 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-18 21:15:21,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432379176] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 21:15:21,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 21:15:21,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-03-18 21:15:21,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524725197] [2022-03-18 21:15:21,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:21,752 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:15:21,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:21,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:15:21,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:15:21,752 INFO L87 Difference]: Start difference. First operand 2301 states and 3315 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:22,947 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 [] [2022-03-18 21:15:23,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:23,210 INFO L93 Difference]: Finished difference Result 2567 states and 3658 transitions. [2022-03-18 21:15:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:15:23,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-03-18 21:15:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:23,214 INFO L225 Difference]: With dead ends: 2567 [2022-03-18 21:15:23,214 INFO L226 Difference]: Without dead ends: 2567 [2022-03-18 21:15:23,214 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:15:23,214 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 105 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:23,214 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 409 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-18 21:15:23,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2022-03-18 21:15:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2301. [2022-03-18 21:15:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4390243902439024) internal successors, (3304), 2296 states have internal predecessors, (3304), 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) [2022-03-18 21:15:23,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3308 transitions. [2022-03-18 21:15:23,251 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3308 transitions. Word has length 297 [2022-03-18 21:15:23,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:23,251 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 3308 transitions. [2022-03-18 21:15:23,251 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3308 transitions. [2022-03-18 21:15:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-18 21:15:23,254 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:23,254 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:15:23,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 21:15:23,475 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-03-18 21:15:23,475 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:23,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash 307983069, now seen corresponding path program 1 times [2022-03-18 21:15:23,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:23,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249308187] [2022-03-18 21:15:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-18 21:15:23,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:23,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249308187] [2022-03-18 21:15:23,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249308187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:23,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:23,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 21:15:23,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590460349] [2022-03-18 21:15:23,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:23,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 21:15:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:23,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 21:15:23,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:15:23,769 INFO L87 Difference]: Start difference. First operand 2301 states and 3308 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:25,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:27,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:29,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:32,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:34,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:34,727 INFO L93 Difference]: Finished difference Result 4380 states and 6286 transitions. [2022-03-18 21:15:34,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-18 21:15:34,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 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 297 [2022-03-18 21:15:34,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:34,733 INFO L225 Difference]: With dead ends: 4380 [2022-03-18 21:15:34,733 INFO L226 Difference]: Without dead ends: 4380 [2022-03-18 21:15:34,733 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-18 21:15:34,733 INFO L912 BasicCegarLoop]: 319 mSDtfsCounter, 190 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 50 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:34,733 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1263 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1389 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-03-18 21:15:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-03-18 21:15:34,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4121. [2022-03-18 21:15:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 4116 states have (on average 1.4523809523809523) internal successors, (5978), 4116 states have internal predecessors, (5978), 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) [2022-03-18 21:15:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5982 transitions. [2022-03-18 21:15:34,788 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5982 transitions. Word has length 297 [2022-03-18 21:15:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:34,788 INFO L478 AbstractCegarLoop]: Abstraction has 4121 states and 5982 transitions. [2022-03-18 21:15:34,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:34,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5982 transitions. [2022-03-18 21:15:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-18 21:15:34,793 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:34,793 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 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] [2022-03-18 21:15:34,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-18 21:15:34,793 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:34,793 INFO L85 PathProgramCache]: Analyzing trace with hash -922148886, now seen corresponding path program 1 times [2022-03-18 21:15:34,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:34,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302674060] [2022-03-18 21:15:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:34,935 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-03-18 21:15:34,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302674060] [2022-03-18 21:15:34,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302674060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:34,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:34,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:34,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108507898] [2022-03-18 21:15:34,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:34,936 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:34,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:34,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:34,937 INFO L87 Difference]: Start difference. First operand 4121 states and 5982 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:36,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:38,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:40,241 INFO L93 Difference]: Finished difference Result 4607 states and 6640 transitions. [2022-03-18 21:15:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:40,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 298 [2022-03-18 21:15:40,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:40,247 INFO L225 Difference]: With dead ends: 4607 [2022-03-18 21:15:40,247 INFO L226 Difference]: Without dead ends: 4607 [2022-03-18 21:15:40,247 INFO L911 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 [2022-03-18 21:15:40,249 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:40,249 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 21:15:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4607 states. [2022-03-18 21:15:40,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4607 to 4209. [2022-03-18 21:15:40,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4204 states have (on average 1.4524262607040914) internal successors, (6106), 4204 states have internal predecessors, (6106), 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) [2022-03-18 21:15:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 6110 transitions. [2022-03-18 21:15:40,282 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 6110 transitions. Word has length 298 [2022-03-18 21:15:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:40,283 INFO L478 AbstractCegarLoop]: Abstraction has 4209 states and 6110 transitions. [2022-03-18 21:15:40,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 6110 transitions. [2022-03-18 21:15:40,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-18 21:15:40,287 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:40,288 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:15:40,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-18 21:15:40,288 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:40,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:40,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1375885393, now seen corresponding path program 1 times [2022-03-18 21:15:40,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:40,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377757396] [2022-03-18 21:15:40,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:40,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-18 21:15:40,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:40,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377757396] [2022-03-18 21:15:40,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377757396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:40,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:40,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:40,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80975575] [2022-03-18 21:15:40,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:40,442 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:40,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:40,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:40,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:40,442 INFO L87 Difference]: Start difference. First operand 4209 states and 6110 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:42,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:44,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:45,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:45,799 INFO L93 Difference]: Finished difference Result 4355 states and 6280 transitions. [2022-03-18 21:15:45,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:45,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 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 298 [2022-03-18 21:15:45,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:45,805 INFO L225 Difference]: With dead ends: 4355 [2022-03-18 21:15:45,805 INFO L226 Difference]: Without dead ends: 4323 [2022-03-18 21:15:45,805 INFO L911 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 [2022-03-18 21:15:45,806 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 31 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:45,806 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 581 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 21:15:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2022-03-18 21:15:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4201. [2022-03-18 21:15:45,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4201 states, 4196 states have (on average 1.4513822688274547) internal successors, (6090), 4196 states have internal predecessors, (6090), 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) [2022-03-18 21:15:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4201 states to 4201 states and 6094 transitions. [2022-03-18 21:15:45,841 INFO L78 Accepts]: Start accepts. Automaton has 4201 states and 6094 transitions. Word has length 298 [2022-03-18 21:15:45,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:45,841 INFO L478 AbstractCegarLoop]: Abstraction has 4201 states and 6094 transitions. [2022-03-18 21:15:45,842 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:45,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4201 states and 6094 transitions. [2022-03-18 21:15:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-18 21:15:45,846 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:45,846 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 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] [2022-03-18 21:15:45,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-18 21:15:45,847 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:45,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1644493762, now seen corresponding path program 1 times [2022-03-18 21:15:45,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:45,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747300937] [2022-03-18 21:15:45,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:45,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-03-18 21:15:46,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:46,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747300937] [2022-03-18 21:15:46,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747300937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:46,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:46,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:46,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186445924] [2022-03-18 21:15:46,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:46,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:46,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:46,004 INFO L87 Difference]: Start difference. First operand 4201 states and 6094 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:49,070 INFO L93 Difference]: Finished difference Result 4307 states and 6218 transitions. [2022-03-18 21:15:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:49,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 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 299 [2022-03-18 21:15:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:49,075 INFO L225 Difference]: With dead ends: 4307 [2022-03-18 21:15:49,075 INFO L226 Difference]: Without dead ends: 4307 [2022-03-18 21:15:49,075 INFO L911 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 [2022-03-18 21:15:49,075 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 14 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:49,076 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 553 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 21:15:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2022-03-18 21:15:49,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4281. [2022-03-18 21:15:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4276 states have (on average 1.4466791393826006) internal successors, (6186), 4276 states have internal predecessors, (6186), 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) [2022-03-18 21:15:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 6190 transitions. [2022-03-18 21:15:49,106 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 6190 transitions. Word has length 299 [2022-03-18 21:15:49,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:49,106 INFO L478 AbstractCegarLoop]: Abstraction has 4281 states and 6190 transitions. [2022-03-18 21:15:49,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:49,106 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 6190 transitions. [2022-03-18 21:15:49,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-18 21:15:49,112 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:49,112 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 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] [2022-03-18 21:15:49,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-18 21:15:49,112 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:49,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1431479809, now seen corresponding path program 1 times [2022-03-18 21:15:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:49,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620180073] [2022-03-18 21:15:49,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:49,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-03-18 21:15:49,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:49,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620180073] [2022-03-18 21:15:49,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620180073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:49,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:49,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:49,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482495941] [2022-03-18 21:15:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:49,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:49,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:49,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:49,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:49,276 INFO L87 Difference]: Start difference. First operand 4281 states and 6190 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:51,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:53,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:54,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:15:54,217 INFO L93 Difference]: Finished difference Result 4655 states and 6684 transitions. [2022-03-18 21:15:54,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:15:54,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 299 [2022-03-18 21:15:54,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:15:54,221 INFO L225 Difference]: With dead ends: 4655 [2022-03-18 21:15:54,222 INFO L226 Difference]: Without dead ends: 4655 [2022-03-18 21:15:54,222 INFO L911 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 [2022-03-18 21:15:54,222 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:15:54,222 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 21:15:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2022-03-18 21:15:54,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4325. [2022-03-18 21:15:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4320 states have (on average 1.4458333333333333) internal successors, (6246), 4320 states have internal predecessors, (6246), 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) [2022-03-18 21:15:54,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6250 transitions. [2022-03-18 21:15:54,257 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 6250 transitions. Word has length 299 [2022-03-18 21:15:54,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:15:54,257 INFO L478 AbstractCegarLoop]: Abstraction has 4325 states and 6250 transitions. [2022-03-18 21:15:54,257 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:54,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 6250 transitions. [2022-03-18 21:15:54,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-03-18 21:15:54,262 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:15:54,262 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 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] [2022-03-18 21:15:54,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-18 21:15:54,262 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:15:54,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:15:54,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1259862963, now seen corresponding path program 1 times [2022-03-18 21:15:54,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:15:54,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217658495] [2022-03-18 21:15:54,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:15:54,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:15:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:15:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:15:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-03-18 21:15:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:15:54,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217658495] [2022-03-18 21:15:54,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217658495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:15:54,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:15:54,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:15:54,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328152501] [2022-03-18 21:15:54,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:15:54,426 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:15:54,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:15:54,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:15:54,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:15:54,426 INFO L87 Difference]: Start difference. First operand 4325 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:15:57,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:15:58,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:00,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:00,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:16:00,736 INFO L93 Difference]: Finished difference Result 4639 states and 6660 transitions. [2022-03-18 21:16:00,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:16:00,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 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 300 [2022-03-18 21:16:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:16:00,740 INFO L225 Difference]: With dead ends: 4639 [2022-03-18 21:16:00,740 INFO L226 Difference]: Without dead ends: 4639 [2022-03-18 21:16:00,740 INFO L911 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 [2022-03-18 21:16:00,741 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 47 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:16:00,741 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 579 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-18 21:16:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-03-18 21:16:00,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4417. [2022-03-18 21:16:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.442883046237534) internal successors, (6366), 4412 states have internal predecessors, (6366), 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) [2022-03-18 21:16:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6370 transitions. [2022-03-18 21:16:00,776 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6370 transitions. Word has length 300 [2022-03-18 21:16:00,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:16:00,777 INFO L478 AbstractCegarLoop]: Abstraction has 4417 states and 6370 transitions. [2022-03-18 21:16:00,777 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:00,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6370 transitions. [2022-03-18 21:16:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-03-18 21:16:00,784 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:16:00,784 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-03-18 21:16:00,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-18 21:16:00,784 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:16:00,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:16:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash 502472203, now seen corresponding path program 1 times [2022-03-18 21:16:00,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:16:00,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260903445] [2022-03-18 21:16:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:00,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:16:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:00,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:16:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-03-18 21:16:00,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:16:00,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260903445] [2022-03-18 21:16:00,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260903445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:16:00,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:16:00,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:16:00,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008413814] [2022-03-18 21:16:00,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:16:00,974 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:16:00,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:16:00,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:16:00,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:16:00,975 INFO L87 Difference]: Start difference. First operand 4417 states and 6370 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) [2022-03-18 21:16:02,707 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 [] [2022-03-18 21:16:03,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:05,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:07,085 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 [] [2022-03-18 21:16:07,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:16:07,441 INFO L93 Difference]: Finished difference Result 4539 states and 6512 transitions. [2022-03-18 21:16:07,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:16:07,441 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 309 [2022-03-18 21:16:07,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:16:07,445 INFO L225 Difference]: With dead ends: 4539 [2022-03-18 21:16:07,445 INFO L226 Difference]: Without dead ends: 4539 [2022-03-18 21:16:07,445 INFO L911 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 [2022-03-18 21:16:07,446 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 30 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:16:07,446 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-18 21:16:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2022-03-18 21:16:07,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4417. [2022-03-18 21:16:07,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.4410698096101542) internal successors, (6358), 4412 states have internal predecessors, (6358), 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) [2022-03-18 21:16:07,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6362 transitions. [2022-03-18 21:16:07,521 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6362 transitions. Word has length 309 [2022-03-18 21:16:07,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:16:07,521 INFO L478 AbstractCegarLoop]: Abstraction has 4417 states and 6362 transitions. [2022-03-18 21:16:07,521 INFO L479 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) [2022-03-18 21:16:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6362 transitions. [2022-03-18 21:16:07,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-03-18 21:16:07,525 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:16:07,526 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-03-18 21:16:07,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-18 21:16:07,539 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:16:07,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:16:07,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1430463166, now seen corresponding path program 1 times [2022-03-18 21:16:07,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:16:07,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663401589] [2022-03-18 21:16:07,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:07,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:16:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:07,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:16:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-03-18 21:16:07,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:16:07,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663401589] [2022-03-18 21:16:07,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663401589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:16:07,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:16:07,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:16:07,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303003148] [2022-03-18 21:16:07,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:16:07,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:16:07,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:16:07,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:16:07,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:16:07,715 INFO L87 Difference]: Start difference. First operand 4417 states and 6362 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:09,069 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 [] [2022-03-18 21:16:10,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:12,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:12,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:16:12,742 INFO L93 Difference]: Finished difference Result 4507 states and 6464 transitions. [2022-03-18 21:16:12,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:16:12,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 310 [2022-03-18 21:16:12,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:16:12,756 INFO L225 Difference]: With dead ends: 4507 [2022-03-18 21:16:12,756 INFO L226 Difference]: Without dead ends: 4435 [2022-03-18 21:16:12,756 INFO L911 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 [2022-03-18 21:16:12,757 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 26 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:16:12,757 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 571 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:16:12,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2022-03-18 21:16:12,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4345. [2022-03-18 21:16:12,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 4340 states have (on average 1.4465437788018434) internal successors, (6278), 4340 states have internal predecessors, (6278), 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) [2022-03-18 21:16:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 6282 transitions. [2022-03-18 21:16:12,789 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 6282 transitions. Word has length 310 [2022-03-18 21:16:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:16:12,790 INFO L478 AbstractCegarLoop]: Abstraction has 4345 states and 6282 transitions. [2022-03-18 21:16:12,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 6282 transitions. [2022-03-18 21:16:12,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-03-18 21:16:12,794 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:16:12,794 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-03-18 21:16:12,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-18 21:16:12,795 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:16:12,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:16:12,795 INFO L85 PathProgramCache]: Analyzing trace with hash -953423688, now seen corresponding path program 1 times [2022-03-18 21:16:12,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:16:12,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055175535] [2022-03-18 21:16:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:12,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:16:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:12,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:16:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-03-18 21:16:12,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:16:12,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055175535] [2022-03-18 21:16:12,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055175535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:16:12,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:16:12,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:16:12,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942337138] [2022-03-18 21:16:12,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:16:12,990 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:16:12,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:16:12,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:16:12,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:16:12,990 INFO L87 Difference]: Start difference. First operand 4345 states and 6282 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:14,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:16,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:18,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:20,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:16:20,766 INFO L93 Difference]: Finished difference Result 4403 states and 6344 transitions. [2022-03-18 21:16:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:16:20,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 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 318 [2022-03-18 21:16:20,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:16:20,770 INFO L225 Difference]: With dead ends: 4403 [2022-03-18 21:16:20,770 INFO L226 Difference]: Without dead ends: 4387 [2022-03-18 21:16:20,770 INFO L911 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 [2022-03-18 21:16:20,770 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:16:20,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 563 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 408 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-18 21:16:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-03-18 21:16:20,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-03-18 21:16:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.446345975948196) internal successors, (6254), 4324 states have internal predecessors, (6254), 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) [2022-03-18 21:16:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6258 transitions. [2022-03-18 21:16:20,797 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6258 transitions. Word has length 318 [2022-03-18 21:16:20,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:16:20,797 INFO L478 AbstractCegarLoop]: Abstraction has 4329 states and 6258 transitions. [2022-03-18 21:16:20,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6258 transitions. [2022-03-18 21:16:20,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-03-18 21:16:20,802 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:16:20,802 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:16:20,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-18 21:16:20,802 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:16:20,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:16:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash -893601060, now seen corresponding path program 1 times [2022-03-18 21:16:20,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:16:20,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517399071] [2022-03-18 21:16:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:20,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:16:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:16:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-18 21:16:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:16:20,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517399071] [2022-03-18 21:16:20,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517399071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:16:20,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:16:20,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:16:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683227740] [2022-03-18 21:16:20,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:16:20,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:16:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:16:20,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:16:20,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:16:20,955 INFO L87 Difference]: Start difference. First operand 4329 states and 6258 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:22,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:23,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:24,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:16:24,995 INFO L93 Difference]: Finished difference Result 4387 states and 6320 transitions. [2022-03-18 21:16:24,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:16:24,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 319 [2022-03-18 21:16:24,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:16:24,999 INFO L225 Difference]: With dead ends: 4387 [2022-03-18 21:16:24,999 INFO L226 Difference]: Without dead ends: 4387 [2022-03-18 21:16:24,999 INFO L911 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 [2022-03-18 21:16:24,999 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:16:24,999 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 561 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 21:16:25,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-03-18 21:16:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-03-18 21:16:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.4444958371877892) internal successors, (6246), 4324 states have internal predecessors, (6246), 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) [2022-03-18 21:16:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6250 transitions. [2022-03-18 21:16:25,030 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6250 transitions. Word has length 319 [2022-03-18 21:16:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:16:25,030 INFO L478 AbstractCegarLoop]: Abstraction has 4329 states and 6250 transitions. [2022-03-18 21:16:25,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:25,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6250 transitions. [2022-03-18 21:16:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-03-18 21:16:25,034 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:16:25,034 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:16:25,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-18 21:16:25,034 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:16:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:16:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash -801415708, now seen corresponding path program 1 times [2022-03-18 21:16:25,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:16:25,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006975261] [2022-03-18 21:16:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:25,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:16:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:16:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-18 21:16:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:16:25,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006975261] [2022-03-18 21:16:25,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006975261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:16:25,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:16:25,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:16:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107493567] [2022-03-18 21:16:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:16:25,195 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:16:25,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:16:25,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:16:25,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:16:25,195 INFO L87 Difference]: Start difference. First operand 4329 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:27,994 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 [] [2022-03-18 21:16:29,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:16:29,048 INFO L93 Difference]: Finished difference Result 4355 states and 6270 transitions. [2022-03-18 21:16:29,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:16:29,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 320 [2022-03-18 21:16:29,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:16:29,052 INFO L225 Difference]: With dead ends: 4355 [2022-03-18 21:16:29,052 INFO L226 Difference]: Without dead ends: 4339 [2022-03-18 21:16:29,052 INFO L911 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 [2022-03-18 21:16:29,053 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 15 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:16:29,053 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 553 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 21:16:29,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-03-18 21:16:29,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4145. [2022-03-18 21:16:29,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.448792270531401) internal successors, (5998), 4140 states have internal predecessors, (5998), 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) [2022-03-18 21:16:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6002 transitions. [2022-03-18 21:16:29,080 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6002 transitions. Word has length 320 [2022-03-18 21:16:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:16:29,081 INFO L478 AbstractCegarLoop]: Abstraction has 4145 states and 6002 transitions. [2022-03-18 21:16:29,081 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6002 transitions. [2022-03-18 21:16:29,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-18 21:16:29,084 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:16:29,085 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-18 21:16:29,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-18 21:16:29,085 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:16:29,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:16:29,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1716898329, now seen corresponding path program 1 times [2022-03-18 21:16:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:16:29,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220173895] [2022-03-18 21:16:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:16:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:29,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:16:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2022-03-18 21:16:29,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:16:29,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220173895] [2022-03-18 21:16:29,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220173895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:16:29,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:16:29,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 21:16:29,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164824524] [2022-03-18 21:16:29,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:16:29,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 21:16:29,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:16:29,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 21:16:29,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:16:29,538 INFO L87 Difference]: Start difference. First operand 4145 states and 6002 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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) [2022-03-18 21:16:33,482 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 [] [2022-03-18 21:16:34,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:36,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:16:36,673 INFO L93 Difference]: Finished difference Result 4153 states and 6012 transitions. [2022-03-18 21:16:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:16:36,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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 326 [2022-03-18 21:16:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:16:36,677 INFO L225 Difference]: With dead ends: 4153 [2022-03-18 21:16:36,677 INFO L226 Difference]: Without dead ends: 4145 [2022-03-18 21:16:36,677 INFO L911 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 [2022-03-18 21:16:36,677 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 7 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:16:36,677 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 822 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 439 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-03-18 21:16:36,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2022-03-18 21:16:36,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4145. [2022-03-18 21:16:36,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.4485507246376812) internal successors, (5997), 4140 states have internal predecessors, (5997), 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) [2022-03-18 21:16:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6001 transitions. [2022-03-18 21:16:36,705 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6001 transitions. Word has length 326 [2022-03-18 21:16:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:16:36,705 INFO L478 AbstractCegarLoop]: Abstraction has 4145 states and 6001 transitions. [2022-03-18 21:16:36,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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) [2022-03-18 21:16:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6001 transitions. [2022-03-18 21:16:36,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-18 21:16:36,709 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:16:36,709 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-18 21:16:36,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-18 21:16:36,709 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:16:36,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:16:36,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1006834184, now seen corresponding path program 1 times [2022-03-18 21:16:36,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:16:36,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086062883] [2022-03-18 21:16:36,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:36,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:16:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:16:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 513 proven. 209 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-18 21:16:37,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:16:37,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086062883] [2022-03-18 21:16:37,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086062883] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:16:37,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589149212] [2022-03-18 21:16:37,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:16:37,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:16:37,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:16:37,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:16:37,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 21:16:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:16:38,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 100 conjunts are in the unsatisfiable core [2022-03-18 21:16:38,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:16:38,803 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:16:38,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:16:38,908 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-18 21:16:38,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-18 21:16:39,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-18 21:16:39,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-18 21:16:39,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:39,110 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-18 21:16:39,135 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-18 21:16:39,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-18 21:16:39,151 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:16:39,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-18 21:16:39,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:39,763 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-18 21:16:39,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-18 21:16:39,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:39,776 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-18 21:16:39,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:39,790 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-18 21:16:39,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:39,872 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-18 21:16:39,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:39,895 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-18 21:16:39,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-18 21:16:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:39,899 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-18 21:16:40,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:40,616 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 21:16:40,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-18 21:16:40,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:40,650 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-18 21:16:40,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-18 21:16:40,693 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-18 21:16:40,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-18 21:16:42,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 379 treesize of output 295 [2022-03-18 21:16:42,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:42,387 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-18 21:16:42,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 379 treesize of output 392 [2022-03-18 21:16:42,416 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-18 21:16:42,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 407 treesize of output 335 [2022-03-18 21:16:46,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 304 [2022-03-18 21:16:46,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 286 [2022-03-18 21:16:46,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,254 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-18 21:16:46,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 374 treesize of output 362 [2022-03-18 21:16:46,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-03-18 21:16:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:16:46,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 88 [2022-03-18 21:16:46,476 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-18 21:16:46,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 107 treesize of output 108 [2022-03-18 21:16:46,540 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-18 21:16:46,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-18 21:16:46,652 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 21:16:46,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-18 21:16:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-18 21:16:46,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 21:16:49,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:16:49,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:16:49,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-18 21:16:49,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:16:49,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:16:49,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-18 21:16:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-18 21:16:52,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589149212] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 21:16:52,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 21:16:52,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 14] total 42 [2022-03-18 21:16:52,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094021909] [2022-03-18 21:16:52,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 21:16:52,082 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-18 21:16:52,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:16:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-18 21:16:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=1431, Unknown=0, NotChecked=0, Total=1722 [2022-03-18 21:16:52,083 INFO L87 Difference]: Start difference. First operand 4145 states and 6001 transitions. Second operand has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:16:53,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:55,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:57,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:16:59,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:01,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:03,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:11,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:17:11,454 INFO L93 Difference]: Finished difference Result 11216 states and 15788 transitions. [2022-03-18 21:17:11,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-18 21:17:11,455 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-03-18 21:17:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:17:11,463 INFO L225 Difference]: With dead ends: 11216 [2022-03-18 21:17:11,464 INFO L226 Difference]: Without dead ends: 11216 [2022-03-18 21:17:11,465 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 689 SyntacticMatches, 6 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4373 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1593, Invalid=11289, Unknown=0, NotChecked=0, Total=12882 [2022-03-18 21:17:11,465 INFO L912 BasicCegarLoop]: 378 mSDtfsCounter, 1928 mSDsluCounter, 5115 mSDsCounter, 0 mSdLazyCounter, 4893 mSolverCounterSat, 190 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 7844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4893 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 2758 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:17:11,465 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1928 Valid, 5493 Invalid, 7844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4893 Invalid, 3 Unknown, 2758 Unchecked, 15.8s Time] [2022-03-18 21:17:11,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2022-03-18 21:17:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5433. [2022-03-18 21:17:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5433 states, 5428 states have (on average 1.4823139277818718) internal successors, (8046), 5428 states have internal predecessors, (8046), 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) [2022-03-18 21:17:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5433 states to 5433 states and 8050 transitions. [2022-03-18 21:17:11,553 INFO L78 Accepts]: Start accepts. Automaton has 5433 states and 8050 transitions. Word has length 326 [2022-03-18 21:17:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:17:11,554 INFO L478 AbstractCegarLoop]: Abstraction has 5433 states and 8050 transitions. [2022-03-18 21:17:11,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 11.976190476190476) internal successors, (503), 41 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:17:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5433 states and 8050 transitions. [2022-03-18 21:17:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-03-18 21:17:11,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:17:11,559 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-18 21:17:11,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-18 21:17:11,781 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-03-18 21:17:11,782 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:17:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:17:11,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1827435158, now seen corresponding path program 1 times [2022-03-18 21:17:11,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:17:11,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294578636] [2022-03-18 21:17:11,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:17:11,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:17:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:17:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:17:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:17:12,473 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 513 proven. 209 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-18 21:17:12,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:17:12,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294578636] [2022-03-18 21:17:12,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294578636] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:17:12,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358299887] [2022-03-18 21:17:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:17:12,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:17:12,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:17:12,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:17:12,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-18 21:17:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:17:13,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-18 21:17:13,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:17:13,808 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:17:13,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:17:13,894 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-18 21:17:13,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-18 21:17:13,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-18 21:17:14,022 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:17:14,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 21:17:14,032 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:17:14,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 21:17:14,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:14,041 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-18 21:17:14,064 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-18 21:17:14,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-18 21:17:14,073 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:17:14,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-03-18 21:17:14,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:14,587 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-18 21:17:14,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:14,591 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-18 21:17:14,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:14,606 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-18 21:17:14,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-18 21:17:14,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:14,652 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-18 21:17:14,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:14,676 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-18 21:17:14,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-18 21:17:14,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:14,680 INFO L390 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-18 21:17:15,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:15,211 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 21:17:15,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-18 21:17:15,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:15,236 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-18 21:17:15,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-18 21:17:15,267 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-18 21:17:15,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-18 21:17:16,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 357 treesize of output 279 [2022-03-18 21:17:16,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:16,062 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-18 21:17:16,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 357 treesize of output 376 [2022-03-18 21:17:16,086 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-18 21:17:16,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 385 treesize of output 313 [2022-03-18 21:17:20,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,237 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-18 21:17:20,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 352 treesize of output 346 [2022-03-18 21:17:20,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 289 [2022-03-18 21:17:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 359 treesize of output 277 [2022-03-18 21:17:20,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 114 [2022-03-18 21:17:20,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:20,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 72 [2022-03-18 21:17:20,458 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-18 21:17:20,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 92 [2022-03-18 21:17:20,507 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-18 21:17:20,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-18 21:17:20,593 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 21:17:20,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-18 21:17:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-18 21:17:20,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 21:17:22,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:22,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:22,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-18 21:17:22,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:22,880 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:22,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-18 21:17:41,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:41,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:41,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-03-18 21:17:41,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:41,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:17:41,507 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-18 21:17:41,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-03-18 21:17:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-18 21:17:41,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358299887] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 21:17:41,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 21:17:41,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 15] total 41 [2022-03-18 21:17:41,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115064610] [2022-03-18 21:17:41,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 21:17:41,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-18 21:17:41,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:17:41,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-18 21:17:41,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=1353, Unknown=7, NotChecked=0, Total=1640 [2022-03-18 21:17:41,648 INFO L87 Difference]: Start difference. First operand 5433 states and 8050 transitions. Second operand has 41 states, 41 states have (on average 12.21951219512195) internal successors, (501), 40 states have internal predecessors, (501), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:17:44,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:46,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:48,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:50,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:52,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:54,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:55,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:57,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:17:59,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:18:01,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:18:14,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:14,480 INFO L93 Difference]: Finished difference Result 14906 states and 21243 transitions. [2022-03-18 21:18:14,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-03-18 21:18:14,481 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 12.21951219512195) internal successors, (501), 40 states have internal predecessors, (501), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 327 [2022-03-18 21:18:14,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:14,493 INFO L225 Difference]: With dead ends: 14906 [2022-03-18 21:18:14,493 INFO L226 Difference]: Without dead ends: 14906 [2022-03-18 21:18:14,494 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 716 SyntacticMatches, 6 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5900 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=2515, Invalid=15034, Unknown=7, NotChecked=0, Total=17556 [2022-03-18 21:18:14,494 INFO L912 BasicCegarLoop]: 650 mSDtfsCounter, 2944 mSDsluCounter, 8223 mSDsCounter, 0 mSdLazyCounter, 9803 mSolverCounterSat, 494 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2944 SdHoareTripleChecker+Valid, 8873 SdHoareTripleChecker+Invalid, 13238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 9803 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 2934 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:14,494 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2944 Valid, 8873 Invalid, 13238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 9803 Invalid, 7 Unknown, 2934 Unchecked, 28.6s Time] [2022-03-18 21:18:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14906 states. [2022-03-18 21:18:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14906 to 5051. [2022-03-18 21:18:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 5046 states have (on average 1.4476813317479191) internal successors, (7305), 5046 states have internal predecessors, (7305), 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) [2022-03-18 21:18:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 7309 transitions. [2022-03-18 21:18:14,565 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 7309 transitions. Word has length 327 [2022-03-18 21:18:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:14,565 INFO L478 AbstractCegarLoop]: Abstraction has 5051 states and 7309 transitions. [2022-03-18 21:18:14,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 12.21951219512195) internal successors, (501), 40 states have internal predecessors, (501), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:14,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 7309 transitions. [2022-03-18 21:18:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-03-18 21:18:14,569 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:14,569 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:18:14,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-18 21:18:14,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:14,775 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash 672096791, now seen corresponding path program 1 times [2022-03-18 21:18:14,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:14,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447436384] [2022-03-18 21:18:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:14,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-18 21:18:14,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:14,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447436384] [2022-03-18 21:18:14,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447436384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:18:14,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:18:14,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:18:14,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699964608] [2022-03-18 21:18:14,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:18:14,976 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:18:14,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:18:14,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:18:14,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:18:14,976 INFO L87 Difference]: Start difference. First operand 5051 states and 7309 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:19,407 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 [] [2022-03-18 21:18:19,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:19,739 INFO L93 Difference]: Finished difference Result 5221 states and 7523 transitions. [2022-03-18 21:18:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:18:19,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 336 [2022-03-18 21:18:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:19,744 INFO L225 Difference]: With dead ends: 5221 [2022-03-18 21:18:19,744 INFO L226 Difference]: Without dead ends: 5221 [2022-03-18 21:18:19,744 INFO L911 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 [2022-03-18 21:18:19,745 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 15 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:19,745 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 549 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 378 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-18 21:18:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-03-18 21:18:19,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5184. [2022-03-18 21:18:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5184 states, 5179 states have (on average 1.4429426530218188) internal successors, (7473), 5179 states have internal predecessors, (7473), 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) [2022-03-18 21:18:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 5184 states and 7477 transitions. [2022-03-18 21:18:19,807 INFO L78 Accepts]: Start accepts. Automaton has 5184 states and 7477 transitions. Word has length 336 [2022-03-18 21:18:19,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:19,807 INFO L478 AbstractCegarLoop]: Abstraction has 5184 states and 7477 transitions. [2022-03-18 21:18:19,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:19,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5184 states and 7477 transitions. [2022-03-18 21:18:19,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-03-18 21:18:19,812 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:19,812 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:18:19,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-18 21:18:19,812 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:19,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:19,813 INFO L85 PathProgramCache]: Analyzing trace with hash 311769257, now seen corresponding path program 1 times [2022-03-18 21:18:19,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:19,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678425490] [2022-03-18 21:18:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:19,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:19,961 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-18 21:18:19,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:19,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678425490] [2022-03-18 21:18:19,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678425490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:18:19,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:18:19,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:18:19,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249524050] [2022-03-18 21:18:19,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:18:19,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:18:19,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:18:19,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:18:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:18:19,962 INFO L87 Difference]: Start difference. First operand 5184 states and 7477 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:22,863 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 [] [2022-03-18 21:18:24,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:24,638 INFO L93 Difference]: Finished difference Result 5221 states and 7516 transitions. [2022-03-18 21:18:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:18:24,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 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 337 [2022-03-18 21:18:24,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:24,643 INFO L225 Difference]: With dead ends: 5221 [2022-03-18 21:18:24,643 INFO L226 Difference]: Without dead ends: 5221 [2022-03-18 21:18:24,644 INFO L911 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 [2022-03-18 21:18:24,644 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 13 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:24,644 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 547 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-18 21:18:24,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2022-03-18 21:18:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 5191. [2022-03-18 21:18:24,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5186 states have (on average 1.4423447743925955) internal successors, (7480), 5186 states have internal predecessors, (7480), 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) [2022-03-18 21:18:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 7484 transitions. [2022-03-18 21:18:24,680 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 7484 transitions. Word has length 337 [2022-03-18 21:18:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:24,680 INFO L478 AbstractCegarLoop]: Abstraction has 5191 states and 7484 transitions. [2022-03-18 21:18:24,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 7484 transitions. [2022-03-18 21:18:24,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-18 21:18:24,685 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:24,685 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:18:24,685 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-18 21:18:24,685 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:24,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:24,685 INFO L85 PathProgramCache]: Analyzing trace with hash 942915248, now seen corresponding path program 1 times [2022-03-18 21:18:24,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:24,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497874532] [2022-03-18 21:18:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:24,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:24,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-18 21:18:24,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:24,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497874532] [2022-03-18 21:18:24,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497874532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:18:24,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:18:24,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:18:24,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206164174] [2022-03-18 21:18:24,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:18:24,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:18:24,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:18:24,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:18:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:18:24,841 INFO L87 Difference]: Start difference. First operand 5191 states and 7484 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:26,848 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 [] [2022-03-18 21:18:27,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:27,153 INFO L93 Difference]: Finished difference Result 5198 states and 7484 transitions. [2022-03-18 21:18:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:18:27,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 338 [2022-03-18 21:18:27,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:27,158 INFO L225 Difference]: With dead ends: 5198 [2022-03-18 21:18:27,158 INFO L226 Difference]: Without dead ends: 5030 [2022-03-18 21:18:27,159 INFO L911 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 [2022-03-18 21:18:27,160 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 10 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:27,160 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 541 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 364 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:18:27,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-03-18 21:18:27,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 4976. [2022-03-18 21:18:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 4971 states have (on average 1.4431703882518607) internal successors, (7174), 4971 states have internal predecessors, (7174), 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) [2022-03-18 21:18:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 7178 transitions. [2022-03-18 21:18:27,194 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 7178 transitions. Word has length 338 [2022-03-18 21:18:27,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:27,195 INFO L478 AbstractCegarLoop]: Abstraction has 4976 states and 7178 transitions. [2022-03-18 21:18:27,195 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 7178 transitions. [2022-03-18 21:18:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-18 21:18:27,202 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:27,202 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-03-18 21:18:27,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-18 21:18:27,202 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:27,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:27,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1034008123, now seen corresponding path program 1 times [2022-03-18 21:18:27,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:27,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659119496] [2022-03-18 21:18:27,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:27,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:27,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 677 proven. 17 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-18 21:18:27,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:27,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659119496] [2022-03-18 21:18:27,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659119496] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:18:27,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545840831] [2022-03-18 21:18:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:27,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:18:27,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:18:27,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-18 21:18:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:28,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-18 21:18:28,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:18:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-03-18 21:18:29,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 21:18:29,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545840831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:18:29,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-18 21:18:29,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-18 21:18:29,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407188656] [2022-03-18 21:18:29,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:18:29,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 21:18:29,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:18:29,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 21:18:29,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:18:29,103 INFO L87 Difference]: Start difference. First operand 4976 states and 7178 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:29,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:29,132 INFO L93 Difference]: Finished difference Result 6478 states and 9357 transitions. [2022-03-18 21:18:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 21:18:29,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 338 [2022-03-18 21:18:29,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:29,138 INFO L225 Difference]: With dead ends: 6478 [2022-03-18 21:18:29,138 INFO L226 Difference]: Without dead ends: 6475 [2022-03-18 21:18:29,138 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-18 21:18:29,138 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 139 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:29,138 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 374 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 21:18:29,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6475 states. [2022-03-18 21:18:29,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 6432. [2022-03-18 21:18:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6432 states, 6427 states have (on average 1.4446864789170686) internal successors, (9285), 6427 states have internal predecessors, (9285), 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) [2022-03-18 21:18:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6432 states to 6432 states and 9289 transitions. [2022-03-18 21:18:29,185 INFO L78 Accepts]: Start accepts. Automaton has 6432 states and 9289 transitions. Word has length 338 [2022-03-18 21:18:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:29,185 INFO L478 AbstractCegarLoop]: Abstraction has 6432 states and 9289 transitions. [2022-03-18 21:18:29,185 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6432 states and 9289 transitions. [2022-03-18 21:18:29,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-03-18 21:18:29,191 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:29,191 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:18:29,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-18 21:18:29,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:29,406 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:29,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash -488272360, now seen corresponding path program 1 times [2022-03-18 21:18:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:29,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167202617] [2022-03-18 21:18:29,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:29,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-03-18 21:18:29,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:29,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167202617] [2022-03-18 21:18:29,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167202617] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:18:29,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:18:29,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:18:29,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228787409] [2022-03-18 21:18:29,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:18:29,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:18:29,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:18:29,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:18:29,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:18:29,561 INFO L87 Difference]: Start difference. First operand 6432 states and 9289 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:31,352 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 [] [2022-03-18 21:18:33,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:18:35,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:18:35,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:35,662 INFO L93 Difference]: Finished difference Result 7934 states and 11472 transitions. [2022-03-18 21:18:35,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:18:35,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 338 [2022-03-18 21:18:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:35,669 INFO L225 Difference]: With dead ends: 7934 [2022-03-18 21:18:35,670 INFO L226 Difference]: Without dead ends: 7931 [2022-03-18 21:18:35,670 INFO L911 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 [2022-03-18 21:18:35,670 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:35,670 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 370 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 230 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-18 21:18:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2022-03-18 21:18:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7888. [2022-03-18 21:18:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 7883 states have (on average 1.4461499429151339) internal successors, (11400), 7883 states have internal predecessors, (11400), 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) [2022-03-18 21:18:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 11404 transitions. [2022-03-18 21:18:35,774 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 11404 transitions. Word has length 338 [2022-03-18 21:18:35,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:35,774 INFO L478 AbstractCegarLoop]: Abstraction has 7888 states and 11404 transitions. [2022-03-18 21:18:35,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 11404 transitions. [2022-03-18 21:18:35,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-18 21:18:35,781 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:35,781 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:18:35,781 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-18 21:18:35,781 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:35,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1114110442, now seen corresponding path program 1 times [2022-03-18 21:18:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:35,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810647238] [2022-03-18 21:18:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:35,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 645 proven. 50 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-03-18 21:18:35,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:35,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810647238] [2022-03-18 21:18:35,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810647238] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:18:35,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546301412] [2022-03-18 21:18:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:35,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:35,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:18:35,967 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:18:35,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-18 21:18:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:37,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 21:18:37,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:18:37,393 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:18:37,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:18:37,429 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 21:18:37,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:18:37,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 21:18:37,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 21:18:37,618 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:18:37,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 21:18:37,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:18:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 640 proven. 130 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-03-18 21:18:37,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 21:18:37,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 645 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-03-18 21:18:37,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546301412] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 21:18:37,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 21:18:37,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 21:18:37,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633644155] [2022-03-18 21:18:37,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:18:37,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:18:37,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:18:37,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:18:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:18:37,993 INFO L87 Difference]: Start difference. First operand 7888 states and 11404 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:38,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:38,786 INFO L93 Difference]: Finished difference Result 8493 states and 12068 transitions. [2022-03-18 21:18:38,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:18:38,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 348 [2022-03-18 21:18:38,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:38,795 INFO L225 Difference]: With dead ends: 8493 [2022-03-18 21:18:38,795 INFO L226 Difference]: Without dead ends: 8493 [2022-03-18 21:18:38,795 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:18:38,796 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 124 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:38,796 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 398 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-18 21:18:38,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-03-18 21:18:38,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7888. [2022-03-18 21:18:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 7883 states have (on average 1.4278827857414689) internal successors, (11256), 7883 states have internal predecessors, (11256), 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) [2022-03-18 21:18:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 11260 transitions. [2022-03-18 21:18:38,860 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 11260 transitions. Word has length 348 [2022-03-18 21:18:38,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:38,860 INFO L478 AbstractCegarLoop]: Abstraction has 7888 states and 11260 transitions. [2022-03-18 21:18:38,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:38,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 11260 transitions. [2022-03-18 21:18:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-03-18 21:18:38,867 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:38,867 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:18:38,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-18 21:18:39,080 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:39,081 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:39,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash 952728042, now seen corresponding path program 1 times [2022-03-18 21:18:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:39,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199163446] [2022-03-18 21:18:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:39,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 651 proven. 47 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2022-03-18 21:18:39,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:39,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199163446] [2022-03-18 21:18:39,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199163446] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:18:39,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026180193] [2022-03-18 21:18:39,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:39,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:39,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:18:39,257 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:18:39,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-18 21:18:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:40,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 21:18:40,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:18:40,691 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:18:40,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 21:18:40,728 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 21:18:40,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:18:40,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 21:18:40,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 21:18:40,917 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 21:18:40,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-18 21:18:40,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 21:18:41,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 646 proven. 127 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-03-18 21:18:41,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 21:18:41,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-03-18 21:18:41,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026180193] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 21:18:41,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 21:18:41,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 21:18:41,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630834574] [2022-03-18 21:18:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:18:41,320 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:18:41,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:18:41,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:18:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:18:41,320 INFO L87 Difference]: Start difference. First operand 7888 states and 11260 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:43,325 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 [] [2022-03-18 21:18:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:18:43,538 INFO L93 Difference]: Finished difference Result 8493 states and 11913 transitions. [2022-03-18 21:18:43,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:18:43,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 349 [2022-03-18 21:18:43,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:18:43,564 INFO L225 Difference]: With dead ends: 8493 [2022-03-18 21:18:43,565 INFO L226 Difference]: Without dead ends: 8493 [2022-03-18 21:18:43,565 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 21:18:43,569 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 123 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:18:43,569 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 355 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 251 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 21:18:43,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-03-18 21:18:43,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7888. [2022-03-18 21:18:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 7883 states have (on average 1.4082202207281491) internal successors, (11101), 7883 states have internal predecessors, (11101), 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) [2022-03-18 21:18:43,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 11105 transitions. [2022-03-18 21:18:43,633 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 11105 transitions. Word has length 349 [2022-03-18 21:18:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:18:43,638 INFO L478 AbstractCegarLoop]: Abstraction has 7888 states and 11105 transitions. [2022-03-18 21:18:43,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:18:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 11105 transitions. [2022-03-18 21:18:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-03-18 21:18:43,645 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:18:43,645 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-18 21:18:43,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-18 21:18:43,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:43,859 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:18:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:18:43,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1081958893, now seen corresponding path program 2 times [2022-03-18 21:18:43,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:18:43,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274312300] [2022-03-18 21:18:43,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:18:43,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:18:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:44,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:18:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:18:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 567 proven. 92 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-03-18 21:18:44,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:18:44,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274312300] [2022-03-18 21:18:44,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274312300] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:18:44,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733163668] [2022-03-18 21:18:44,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-18 21:18:44,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:18:44,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:18:44,956 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:18:44,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-18 21:19:21,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-18 21:19:21,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-18 21:19:21,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 179 conjunts are in the unsatisfiable core [2022-03-18 21:19:21,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:19:21,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,182 INFO L356 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-03-18 21:19:22,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 14076 treesize of output 12060 [2022-03-18 21:19:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:19:22,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 19 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5440 treesize of output 866