/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.07.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:42:30,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:42:30,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:42:30,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:42:30,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:42:30,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:42:30,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:42:30,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:42:30,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:42:30,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:42:30,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:42:30,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:42:30,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:42:30,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:42:30,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:42:30,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:42:30,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:42:30,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:42:30,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:42:30,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:42:30,836 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:42:30,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:42:30,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:42:30,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:42:30,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:42:30,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 08:42:30,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 08:42:30,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 08:42:30,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 08:42:30,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 08:42:30,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 08:42:30,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 08:42:30,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 08:42:30,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 08:42:30,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 08:42:30,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 08:42:30,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 08:42:30,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 08:42:30,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 08:42:30,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:42:30,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:42:30,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:42:30,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:42:30,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:42:30,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:42:30,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:42:30,875 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:42:30,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:42:30,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:42:30,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:42:30,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:42:30,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:42:30,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:42:30,876 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:42:30,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:42:30,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:42:30,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:42:30,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:42:30,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:42:30,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:42:30,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:42:30,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:42:30,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:42:30,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:42:30,878 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:42:30,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:42:31,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:42:31,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:42:31,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:42:31,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:42:31,122 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:42:31,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-2.c [2022-04-06 08:42:31,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5ad760/cd7fcc02c45847f4b133ccef14bbc9d5/FLAG437032ef4 [2022-04-06 08:42:31,675 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:42:31,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-2.c [2022-04-06 08:42:31,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5ad760/cd7fcc02c45847f4b133ccef14bbc9d5/FLAG437032ef4 [2022-04-06 08:42:31,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e5ad760/cd7fcc02c45847f4b133ccef14bbc9d5 [2022-04-06 08:42:31,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:42:31,989 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:42:31,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:42:31,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:42:31,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:42:31,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:42:31" (1/1) ... [2022-04-06 08:42:31,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10680a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:31, skipping insertion in model container [2022-04-06 08:42:31,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:42:31" (1/1) ... [2022-04-06 08:42:32,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:42:32,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:42:32,370 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.07.i.cil-2.c[74369,74382] [2022-04-06 08:42:32,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:42:32,397 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:42:32,512 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.07.i.cil-2.c[74369,74382] [2022-04-06 08:42:32,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:42:32,530 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:42:32,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32 WrapperNode [2022-04-06 08:42:32,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:42:32,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:42:32,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:42:32,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:42:32,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:42:32,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:42:32,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:42:32,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:42:32,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (1/1) ... [2022-04-06 08:42:32,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:42:32,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:42:32,696 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) [2022-04-06 08:42:32,719 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 [2022-04-06 08:42:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:42:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:42:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:42:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 08:42:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 08:42:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:42:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 08:42:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 08:42:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 08:42:32,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 08:42:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:42:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:42:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:42:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:42:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 08:42:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 08:42:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:42:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:42:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:42:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 08:42:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 08:42:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 08:42:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 08:42:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:42:32,882 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:42:32,884 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:42:33,611 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:42:34,063 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 08:42:34,064 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 08:42:34,072 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:42:34,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:42:34,082 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:42:34,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:42:34 BoogieIcfgContainer [2022-04-06 08:42:34,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:42:34,085 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:42:34,085 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:42:34,086 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:42:34,089 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:42:34" (1/1) ... [2022-04-06 08:42:34,090 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:42:34,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:42:34 BasicIcfg [2022-04-06 08:42:34,148 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:42:34,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:42:34,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:42:34,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:42:34,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:42:31" (1/4) ... [2022-04-06 08:42:34,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d38ca19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:42:34, skipping insertion in model container [2022-04-06 08:42:34,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:42:32" (2/4) ... [2022-04-06 08:42:34,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d38ca19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:42:34, skipping insertion in model container [2022-04-06 08:42:34,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:42:34" (3/4) ... [2022-04-06 08:42:34,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d38ca19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:42:34, skipping insertion in model container [2022-04-06 08:42:34,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:42:34" (4/4) ... [2022-04-06 08:42:34,159 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-2.cJordan [2022-04-06 08:42:34,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:42:34,163 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:42:34,209 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:42:34,216 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 [2022-04-06 08:42:34,216 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:42:34,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 08:42:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-06 08:42:34,251 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:34,252 INFO L499 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] [2022-04-06 08:42:34,253 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:34,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:34,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1099342272, now seen corresponding path program 1 times [2022-04-06 08:42:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:34,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981850540] [2022-04-06 08:42:34,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:34,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:34,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981850540] [2022-04-06 08:42:34,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981850540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:34,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:34,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863124021] [2022-04-06 08:42:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:34,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:34,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:34,744 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:37,848 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 [] [2022-04-06 08:42:38,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:38,453 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-04-06 08:42:38,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:38,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 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 42 [2022-04-06 08:42:38,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:38,464 INFO L225 Difference]: With dead ends: 191 [2022-04-06 08:42:38,464 INFO L226 Difference]: Without dead ends: 170 [2022-04-06 08:42:38,465 INFO L912 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 [2022-04-06 08:42:38,467 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:38,468 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-04-06 08:42:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-04-06 08:42:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-04-06 08:42:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:38,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-04-06 08:42:38,512 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-04-06 08:42:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:38,512 INFO L478 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-04-06 08:42:38,513 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-04-06 08:42:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-04-06 08:42:38,515 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:38,515 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:38,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:42:38,515 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:38,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:38,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1972024210, now seen corresponding path program 1 times [2022-04-06 08:42:38,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:38,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424242979] [2022-04-06 08:42:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:38,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:38,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:38,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:38,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424242979] [2022-04-06 08:42:38,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424242979] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:38,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:38,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:38,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42458945] [2022-04-06 08:42:38,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:38,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:38,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:38,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:38,788 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:40,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:42,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:43,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:44,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:45,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:45,596 INFO L93 Difference]: Finished difference Result 270 states and 414 transitions. [2022-04-06 08:42:45,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:45,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 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 55 [2022-04-06 08:42:45,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:45,598 INFO L225 Difference]: With dead ends: 270 [2022-04-06 08:42:45,598 INFO L226 Difference]: Without dead ends: 270 [2022-04-06 08:42:45,599 INFO L912 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 [2022-04-06 08:42:45,600 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 143 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:45,600 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 626 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 621 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-04-06 08:42:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-04-06 08:42:45,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 169. [2022-04-06 08:42:45,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-04-06 08:42:45,611 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-04-06 08:42:45,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:45,611 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-04-06 08:42:45,611 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-04-06 08:42:45,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-04-06 08:42:45,613 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:45,613 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:45,613 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:42:45,614 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:45,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:45,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1748095558, now seen corresponding path program 1 times [2022-04-06 08:42:45,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:45,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753127244] [2022-04-06 08:42:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:45,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:45,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:45,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:45,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753127244] [2022-04-06 08:42:45,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753127244] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:45,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:45,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:45,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777091910] [2022-04-06 08:42:45,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:45,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:45,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:45,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:45,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:45,764 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:48,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:49,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:49,942 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-04-06 08:42:49,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:49,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-04-06 08:42:49,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:49,943 INFO L225 Difference]: With dead ends: 185 [2022-04-06 08:42:49,944 INFO L226 Difference]: Without dead ends: 185 [2022-04-06 08:42:49,944 INFO L912 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 [2022-04-06 08:42:49,945 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:49,945 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 08:42:49,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-04-06 08:42:49,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-04-06 08:42:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-04-06 08:42:49,954 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-04-06 08:42:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:49,954 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-04-06 08:42:49,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-04-06 08:42:49,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-04-06 08:42:49,956 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:49,956 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:49,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:42:49,957 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:49,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:49,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1209199142, now seen corresponding path program 1 times [2022-04-06 08:42:49,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:49,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213445307] [2022-04-06 08:42:49,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:49,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:50,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:50,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:50,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213445307] [2022-04-06 08:42:50,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213445307] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:50,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:50,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:50,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034430262] [2022-04-06 08:42:50,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:50,124 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:50,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:50,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:50,125 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:52,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:54,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:56,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:42:56,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:56,479 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-04-06 08:42:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:56,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-04-06 08:42:56,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:56,481 INFO L225 Difference]: With dead ends: 185 [2022-04-06 08:42:56,481 INFO L226 Difference]: Without dead ends: 185 [2022-04-06 08:42:56,481 INFO L912 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 [2022-04-06 08:42:56,482 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:56,483 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 08:42:56,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-04-06 08:42:56,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-04-06 08:42:56,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-04-06 08:42:56,489 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-04-06 08:42:56,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:56,489 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-04-06 08:42:56,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:56,490 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-04-06 08:42:56,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-04-06 08:42:56,491 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:56,491 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:56,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:42:56,492 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:56,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:56,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1966452198, now seen corresponding path program 1 times [2022-04-06 08:42:56,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:56,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171036340] [2022-04-06 08:42:56,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:56,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:56,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:56,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171036340] [2022-04-06 08:42:56,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171036340] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:56,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:56,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:56,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997760032] [2022-04-06 08:42:56,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:56,640 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:56,641 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:59,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:42:59,769 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-04-06 08:42:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:42:59,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-04-06 08:42:59,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:42:59,772 INFO L225 Difference]: With dead ends: 183 [2022-04-06 08:42:59,772 INFO L226 Difference]: Without dead ends: 183 [2022-04-06 08:42:59,772 INFO L912 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 [2022-04-06 08:42:59,773 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:42:59,774 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-06 08:42:59,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-04-06 08:42:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-04-06 08:42:59,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:59,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-04-06 08:42:59,779 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-04-06 08:42:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:42:59,780 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-04-06 08:42:59,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:42:59,780 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-04-06 08:42:59,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-04-06 08:42:59,781 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:42:59,782 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:42:59,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:42:59,782 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:42:59,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:42:59,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1979822394, now seen corresponding path program 1 times [2022-04-06 08:42:59,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:42:59,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854718218] [2022-04-06 08:42:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:42:59,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:42:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:42:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:42:59,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:42:59,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:42:59,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854718218] [2022-04-06 08:42:59,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854718218] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:42:59,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:42:59,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:42:59,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117831019] [2022-04-06 08:42:59,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:42:59,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:42:59,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:42:59,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:42:59,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:42:59,896 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:02,388 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 [] [2022-04-06 08:43:03,717 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 [] [2022-04-06 08:43:04,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:04,262 INFO L93 Difference]: Finished difference Result 285 states and 435 transitions. [2022-04-06 08:43:04,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:04,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-04-06 08:43:04,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:04,264 INFO L225 Difference]: With dead ends: 285 [2022-04-06 08:43:04,265 INFO L226 Difference]: Without dead ends: 285 [2022-04-06 08:43:04,265 INFO L912 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 [2022-04-06 08:43:04,266 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 141 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:04,266 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:43:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-04-06 08:43:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-04-06 08:43:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-04-06 08:43:04,274 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-04-06 08:43:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:04,274 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-04-06 08:43:04,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-04-06 08:43:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-04-06 08:43:04,275 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:04,276 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:04,276 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:43:04,276 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:04,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1222198510, now seen corresponding path program 1 times [2022-04-06 08:43:04,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:04,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972295420] [2022-04-06 08:43:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:04,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:04,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:04,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:04,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972295420] [2022-04-06 08:43:04,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972295420] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:04,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:04,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:04,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218676142] [2022-04-06 08:43:04,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:04,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:04,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:04,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:04,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:04,427 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:08,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:09,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:09,371 INFO L93 Difference]: Finished difference Result 285 states and 432 transitions. [2022-04-06 08:43:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:09,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 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 57 [2022-04-06 08:43:09,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:09,377 INFO L225 Difference]: With dead ends: 285 [2022-04-06 08:43:09,378 INFO L226 Difference]: Without dead ends: 285 [2022-04-06 08:43:09,381 INFO L912 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 [2022-04-06 08:43:09,383 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:09,386 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 08:43:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-04-06 08:43:09,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-04-06 08:43:09,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-04-06 08:43:09,395 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-04-06 08:43:09,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:09,396 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-04-06 08:43:09,396 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:09,396 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-04-06 08:43:09,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-04-06 08:43:09,397 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:09,397 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:09,397 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:43:09,397 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:09,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:09,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1020945954, now seen corresponding path program 1 times [2022-04-06 08:43:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:09,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117610596] [2022-04-06 08:43:09,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:09,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:09,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:09,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:09,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117610596] [2022-04-06 08:43:09,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117610596] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:09,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:09,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:09,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572680430] [2022-04-06 08:43:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:09,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:09,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:09,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:09,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:09,519 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:10,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:12,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:13,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:15,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:15,561 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-04-06 08:43:15,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:15,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 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 58 [2022-04-06 08:43:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:15,562 INFO L225 Difference]: With dead ends: 200 [2022-04-06 08:43:15,562 INFO L226 Difference]: Without dead ends: 200 [2022-04-06 08:43:15,563 INFO L912 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 [2022-04-06 08:43:15,563 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:15,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 08:43:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-04-06 08:43:15,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-04-06 08:43:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-04-06 08:43:15,568 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-04-06 08:43:15,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:15,568 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-04-06 08:43:15,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:15,568 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-04-06 08:43:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-06 08:43:15,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:15,569 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:15,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:43:15,569 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1845134763, now seen corresponding path program 1 times [2022-04-06 08:43:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:15,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621202173] [2022-04-06 08:43:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:15,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:15,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621202173] [2022-04-06 08:43:15,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621202173] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:15,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:15,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:15,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377904411] [2022-04-06 08:43:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:15,675 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:15,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:15,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:15,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:15,675 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:16,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:18,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:20,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:22,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:22,592 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-04-06 08:43:22,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 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 59 [2022-04-06 08:43:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:22,594 INFO L225 Difference]: With dead ends: 190 [2022-04-06 08:43:22,594 INFO L226 Difference]: Without dead ends: 190 [2022-04-06 08:43:22,594 INFO L912 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 [2022-04-06 08:43:22,595 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:22,595 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 08:43:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-04-06 08:43:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-04-06 08:43:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-04-06 08:43:22,599 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-04-06 08:43:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:22,600 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-04-06 08:43:22,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:22,600 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-04-06 08:43:22,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-06 08:43:22,600 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:22,601 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:22,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:43:22,601 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:22,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:22,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1478412284, now seen corresponding path program 1 times [2022-04-06 08:43:22,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:22,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114216131] [2022-04-06 08:43:22,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:22,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:22,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:22,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114216131] [2022-04-06 08:43:22,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114216131] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:22,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:22,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:22,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714513945] [2022-04-06 08:43:22,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:22,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:22,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:22,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:22,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:22,723 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:24,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:26,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:28,375 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 [] [2022-04-06 08:43:28,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:28,833 INFO L93 Difference]: Finished difference Result 303 states and 457 transitions. [2022-04-06 08:43:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:28,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 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 59 [2022-04-06 08:43:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:28,835 INFO L225 Difference]: With dead ends: 303 [2022-04-06 08:43:28,835 INFO L226 Difference]: Without dead ends: 303 [2022-04-06 08:43:28,835 INFO L912 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 [2022-04-06 08:43:28,836 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 130 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:28,836 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 344 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-04-06 08:43:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-04-06 08:43:28,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 215. [2022-04-06 08:43:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-04-06 08:43:28,842 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-04-06 08:43:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:28,842 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-04-06 08:43:28,842 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-04-06 08:43:28,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-04-06 08:43:28,843 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:28,843 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:28,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:43:28,843 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:28,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash 478953171, now seen corresponding path program 1 times [2022-04-06 08:43:28,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:28,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865007901] [2022-04-06 08:43:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:28,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:28,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:28,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:28,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865007901] [2022-04-06 08:43:28,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865007901] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:28,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:28,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:28,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660878491] [2022-04-06 08:43:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:28,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:28,970 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:30,053 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 [] [2022-04-06 08:43:31,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:33,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:33,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:33,727 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-04-06 08:43:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:33,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 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 60 [2022-04-06 08:43:33,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:33,729 INFO L225 Difference]: With dead ends: 257 [2022-04-06 08:43:33,729 INFO L226 Difference]: Without dead ends: 257 [2022-04-06 08:43:33,729 INFO L912 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 [2022-04-06 08:43:33,729 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:33,730 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:43:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-04-06 08:43:33,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-04-06 08:43:33,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:33,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-04-06 08:43:33,735 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-04-06 08:43:33,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:33,735 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-04-06 08:43:33,735 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:33,736 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-04-06 08:43:33,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-06 08:43:33,736 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:33,736 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:33,736 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:43:33,737 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1095309927, now seen corresponding path program 1 times [2022-04-06 08:43:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:33,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548872957] [2022-04-06 08:43:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:33,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:43:33,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:33,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548872957] [2022-04-06 08:43:33,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548872957] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:33,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:33,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013192307] [2022-04-06 08:43:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:33,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:33,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:33,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:33,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:33,844 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:36,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:39,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:39,594 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-04-06 08:43:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:39,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 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 74 [2022-04-06 08:43:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:39,596 INFO L225 Difference]: With dead ends: 250 [2022-04-06 08:43:39,596 INFO L226 Difference]: Without dead ends: 250 [2022-04-06 08:43:39,596 INFO L912 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 [2022-04-06 08:43:39,596 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:39,597 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:43:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-04-06 08:43:39,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-04-06 08:43:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-04-06 08:43:39,602 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-04-06 08:43:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:39,602 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-04-06 08:43:39,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-04-06 08:43:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-06 08:43:39,603 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:39,604 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:39,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:43:39,604 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:39,604 INFO L85 PathProgramCache]: Analyzing trace with hash 725568825, now seen corresponding path program 1 times [2022-04-06 08:43:39,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:39,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856934384] [2022-04-06 08:43:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:39,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:39,762 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:39,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:39,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856934384] [2022-04-06 08:43:39,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856934384] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:39,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:39,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:39,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181125703] [2022-04-06 08:43:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:39,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:39,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:39,764 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:42,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:43,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:44,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:44,217 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-04-06 08:43:44,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:44,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 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 74 [2022-04-06 08:43:44,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:44,218 INFO L225 Difference]: With dead ends: 255 [2022-04-06 08:43:44,218 INFO L226 Difference]: Without dead ends: 255 [2022-04-06 08:43:44,218 INFO L912 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 [2022-04-06 08:43:44,219 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:44,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 08:43:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-04-06 08:43:44,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-04-06 08:43:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:44,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-04-06 08:43:44,224 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-04-06 08:43:44,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:44,224 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-04-06 08:43:44,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:44,224 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-04-06 08:43:44,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-06 08:43:44,225 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:44,225 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:43:44,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:43:44,225 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:44,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:44,226 INFO L85 PathProgramCache]: Analyzing trace with hash -409272786, now seen corresponding path program 1 times [2022-04-06 08:43:44,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:44,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551804646] [2022-04-06 08:43:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:44,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-06 08:43:44,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:44,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551804646] [2022-04-06 08:43:44,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551804646] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:44,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:44,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 08:43:44,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103824278] [2022-04-06 08:43:44,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:44,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 08:43:44,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:44,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 08:43:44,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:43:44,349 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:46,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:48,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:50,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:51,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:51,496 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-04-06 08:43:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 08:43:51,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 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 75 [2022-04-06 08:43:51,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:51,498 INFO L225 Difference]: With dead ends: 246 [2022-04-06 08:43:51,498 INFO L226 Difference]: Without dead ends: 246 [2022-04-06 08:43:51,498 INFO L912 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 [2022-04-06 08:43:51,499 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:51,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 08:43:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-04-06 08:43:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-04-06 08:43:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 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) [2022-04-06 08:43:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-04-06 08:43:51,504 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-04-06 08:43:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:51,504 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-04-06 08:43:51,504 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:51,504 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-04-06 08:43:51,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-06 08:43:51,505 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:51,505 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-06 08:43:51,505 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:43:51,505 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:51,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2074107470, now seen corresponding path program 1 times [2022-04-06 08:43:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:51,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516387340] [2022-04-06 08:43:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:51,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:51,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516387340] [2022-04-06 08:43:51,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516387340] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:51,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:51,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:51,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547686942] [2022-04-06 08:43:51,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:51,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:51,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:51,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:51,612 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:53,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:55,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:57,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:43:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:43:57,398 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-04-06 08:43:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:43:57,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 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 75 [2022-04-06 08:43:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:43:57,399 INFO L225 Difference]: With dead ends: 273 [2022-04-06 08:43:57,399 INFO L226 Difference]: Without dead ends: 273 [2022-04-06 08:43:57,400 INFO L912 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 [2022-04-06 08:43:57,400 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:43:57,400 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:43:57,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-04-06 08:43:57,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-04-06 08:43:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 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) [2022-04-06 08:43:57,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-04-06 08:43:57,405 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-04-06 08:43:57,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:43:57,406 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-04-06 08:43:57,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-04-06 08:43:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-06 08:43:57,407 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:43:57,407 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2022-04-06 08:43:57,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:43:57,407 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:43:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:43:57,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2128965550, now seen corresponding path program 1 times [2022-04-06 08:43:57,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:43:57,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842854451] [2022-04-06 08:43:57,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:43:57,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:43:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:43:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:43:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:43:57,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:43:57,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842854451] [2022-04-06 08:43:57,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842854451] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:43:57,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:43:57,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:43:57,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726322772] [2022-04-06 08:43:57,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:43:57,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:43:57,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:43:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:43:57,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:43:57,512 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:43:59,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:01,480 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 [] [2022-04-06 08:44:01,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:01,905 INFO L93 Difference]: Finished difference Result 353 states and 527 transitions. [2022-04-06 08:44:01,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:01,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 77 [2022-04-06 08:44:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:01,907 INFO L225 Difference]: With dead ends: 353 [2022-04-06 08:44:01,907 INFO L226 Difference]: Without dead ends: 353 [2022-04-06 08:44:01,907 INFO L912 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 [2022-04-06 08:44:01,908 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 144 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:01,908 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 08:44:01,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-04-06 08:44:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 246. [2022-04-06 08:44:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 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) [2022-04-06 08:44:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-04-06 08:44:01,913 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-04-06 08:44:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:01,914 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-04-06 08:44:01,914 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-04-06 08:44:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-06 08:44:01,915 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:01,915 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:01,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:44:01,915 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:01,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:01,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1952802305, now seen corresponding path program 1 times [2022-04-06 08:44:01,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:01,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329128021] [2022-04-06 08:44:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:01,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:02,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:44:02,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:02,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329128021] [2022-04-06 08:44:02,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329128021] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:02,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:02,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:02,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815829691] [2022-04-06 08:44:02,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:02,017 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:02,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:02,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:02,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:02,018 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:03,869 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 [] [2022-04-06 08:44:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:04,682 INFO L93 Difference]: Finished difference Result 353 states and 523 transitions. [2022-04-06 08:44:04,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:04,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 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 [2022-04-06 08:44:04,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:04,684 INFO L225 Difference]: With dead ends: 353 [2022-04-06 08:44:04,684 INFO L226 Difference]: Without dead ends: 353 [2022-04-06 08:44:04,684 INFO L912 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 [2022-04-06 08:44:04,684 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 142 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:04,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 08:44:04,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-04-06 08:44:04,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 246. [2022-04-06 08:44:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:04,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-04-06 08:44:04,690 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-04-06 08:44:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:04,690 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-04-06 08:44:04,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:04,690 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-04-06 08:44:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-06 08:44:04,691 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:04,691 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:04,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:44:04,691 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2041710414, now seen corresponding path program 1 times [2022-04-06 08:44:04,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:04,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782785135] [2022-04-06 08:44:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:04,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:04,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:04,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782785135] [2022-04-06 08:44:04,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782785135] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:04,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:04,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449689043] [2022-04-06 08:44:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:04,800 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:04,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:04,801 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:07,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:09,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:11,017 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 [] [2022-04-06 08:44:11,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:11,539 INFO L93 Difference]: Finished difference Result 351 states and 513 transitions. [2022-04-06 08:44:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:11,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-04-06 08:44:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:11,541 INFO L225 Difference]: With dead ends: 351 [2022-04-06 08:44:11,541 INFO L226 Difference]: Without dead ends: 351 [2022-04-06 08:44:11,541 INFO L912 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 [2022-04-06 08:44:11,542 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 86 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:11,542 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 08:44:11,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-04-06 08:44:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 277. [2022-04-06 08:44:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-04-06 08:44:11,547 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-04-06 08:44:11,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:11,548 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-04-06 08:44:11,548 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:11,548 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-04-06 08:44:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-06 08:44:11,549 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:11,549 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:11,549 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 08:44:11,549 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1016218415, now seen corresponding path program 1 times [2022-04-06 08:44:11,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:11,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754182773] [2022-04-06 08:44:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:11,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:11,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:11,663 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:11,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:11,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754182773] [2022-04-06 08:44:11,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754182773] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:11,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:11,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:11,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169105402] [2022-04-06 08:44:11,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:11,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:11,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:11,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:11,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:11,665 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:14,497 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 [] [2022-04-06 08:44:16,522 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 [] [2022-04-06 08:44:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:16,976 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-04-06 08:44:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:16,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-04-06 08:44:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:16,977 INFO L225 Difference]: With dead ends: 335 [2022-04-06 08:44:16,977 INFO L226 Difference]: Without dead ends: 335 [2022-04-06 08:44:16,977 INFO L912 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 [2022-04-06 08:44:16,978 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:16,978 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 08:44:16,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-04-06 08:44:16,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-04-06 08:44:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-04-06 08:44:16,984 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-04-06 08:44:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:16,984 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-04-06 08:44:16,984 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:16,984 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-04-06 08:44:16,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-06 08:44:16,985 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:16,985 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:16,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 08:44:16,985 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:16,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:16,986 INFO L85 PathProgramCache]: Analyzing trace with hash -358305085, now seen corresponding path program 1 times [2022-04-06 08:44:16,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:16,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696073677] [2022-04-06 08:44:16,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:16,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:17,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:17,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696073677] [2022-04-06 08:44:17,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696073677] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:17,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:17,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:17,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554454395] [2022-04-06 08:44:17,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:17,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:17,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:17,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:17,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:17,090 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:18,330 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 [] [2022-04-06 08:44:19,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:21,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:22,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:22,475 INFO L93 Difference]: Finished difference Result 398 states and 590 transitions. [2022-04-06 08:44:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:22,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 87 [2022-04-06 08:44:22,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:22,477 INFO L225 Difference]: With dead ends: 398 [2022-04-06 08:44:22,477 INFO L226 Difference]: Without dead ends: 398 [2022-04-06 08:44:22,477 INFO L912 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 [2022-04-06 08:44:22,478 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 145 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:22,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 08:44:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-04-06 08:44:22,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 301. [2022-04-06 08:44:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-04-06 08:44:22,484 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-04-06 08:44:22,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:22,484 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-04-06 08:44:22,484 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-04-06 08:44:22,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-06 08:44:22,485 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:22,485 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:22,485 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 08:44:22,485 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:22,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:22,486 INFO L85 PathProgramCache]: Analyzing trace with hash -627016711, now seen corresponding path program 1 times [2022-04-06 08:44:22,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:22,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761603873] [2022-04-06 08:44:22,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:22,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:22,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:22,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:22,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761603873] [2022-04-06 08:44:22,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761603873] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:22,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:22,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:22,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316994163] [2022-04-06 08:44:22,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:22,607 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:22,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:22,608 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:25,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:27,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:27,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:27,831 INFO L93 Difference]: Finished difference Result 427 states and 634 transitions. [2022-04-06 08:44:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:27,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 87 [2022-04-06 08:44:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:27,833 INFO L225 Difference]: With dead ends: 427 [2022-04-06 08:44:27,833 INFO L226 Difference]: Without dead ends: 427 [2022-04-06 08:44:27,833 INFO L912 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 [2022-04-06 08:44:27,833 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:27,833 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 08:44:27,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-04-06 08:44:27,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 351. [2022-04-06 08:44:27,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-04-06 08:44:27,840 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 87 [2022-04-06 08:44:27,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:27,840 INFO L478 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-04-06 08:44:27,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:27,840 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-04-06 08:44:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-04-06 08:44:27,841 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:27,841 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:27,841 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 08:44:27,841 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2038270526, now seen corresponding path program 1 times [2022-04-06 08:44:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:27,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443922124] [2022-04-06 08:44:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:27,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:27,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:27,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443922124] [2022-04-06 08:44:27,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443922124] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:27,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:27,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:27,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6668445] [2022-04-06 08:44:27,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:27,944 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:27,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:27,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:27,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:27,944 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:28,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:30,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:32,078 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 [] [2022-04-06 08:44:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:33,094 INFO L93 Difference]: Finished difference Result 409 states and 609 transitions. [2022-04-06 08:44:33,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:33,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 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 88 [2022-04-06 08:44:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:33,096 INFO L225 Difference]: With dead ends: 409 [2022-04-06 08:44:33,097 INFO L226 Difference]: Without dead ends: 409 [2022-04-06 08:44:33,097 INFO L912 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 [2022-04-06 08:44:33,097 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 67 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:33,097 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 483 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 08:44:33,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-04-06 08:44:33,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 362. [2022-04-06 08:44:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-04-06 08:44:33,103 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 88 [2022-04-06 08:44:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:33,104 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-04-06 08:44:33,104 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:33,104 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-04-06 08:44:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-04-06 08:44:33,105 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:33,105 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:44:33,105 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 08:44:33,105 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:33,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:33,106 INFO L85 PathProgramCache]: Analyzing trace with hash -987048744, now seen corresponding path program 1 times [2022-04-06 08:44:33,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:33,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035342059] [2022-04-06 08:44:33,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:33,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:33,211 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:33,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:33,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035342059] [2022-04-06 08:44:33,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035342059] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:33,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:33,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423319511] [2022-04-06 08:44:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:33,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:33,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:33,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:33,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:33,213 INFO L87 Difference]: Start difference. First operand 362 states and 547 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) [2022-04-06 08:44:35,640 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 [] [2022-04-06 08:44:37,527 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 [] [2022-04-06 08:44:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:37,950 INFO L93 Difference]: Finished difference Result 449 states and 671 transitions. [2022-04-06 08:44:37,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:37,950 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 96 [2022-04-06 08:44:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:37,955 INFO L225 Difference]: With dead ends: 449 [2022-04-06 08:44:37,955 INFO L226 Difference]: Without dead ends: 449 [2022-04-06 08:44:37,956 INFO L912 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 [2022-04-06 08:44:37,956 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 138 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:37,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:44:37,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-04-06 08:44:37,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 362. [2022-04-06 08:44:37,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-04-06 08:44:37,978 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-04-06 08:44:37,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:37,978 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-04-06 08:44:37,979 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) [2022-04-06 08:44:37,979 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-04-06 08:44:37,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-06 08:44:37,980 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:37,980 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:44:37,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 08:44:37,980 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash 522570383, now seen corresponding path program 1 times [2022-04-06 08:44:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:37,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454615106] [2022-04-06 08:44:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:38,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:38,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454615106] [2022-04-06 08:44:38,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454615106] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:38,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:38,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:38,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380153726] [2022-04-06 08:44:38,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:38,115 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:38,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:38,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:38,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:38,116 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:41,091 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 [] [2022-04-06 08:44:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:42,917 INFO L93 Difference]: Finished difference Result 439 states and 652 transitions. [2022-04-06 08:44:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:42,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-04-06 08:44:42,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:42,919 INFO L225 Difference]: With dead ends: 439 [2022-04-06 08:44:42,919 INFO L226 Difference]: Without dead ends: 439 [2022-04-06 08:44:42,919 INFO L912 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 [2022-04-06 08:44:42,920 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 135 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:42,920 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 08:44:42,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-04-06 08:44:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 362. [2022-04-06 08:44:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-04-06 08:44:42,926 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-04-06 08:44:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:42,926 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-04-06 08:44:42,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:42,926 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-04-06 08:44:42,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-04-06 08:44:42,927 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:42,928 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:44:42,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 08:44:42,928 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:42,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash 39070128, now seen corresponding path program 1 times [2022-04-06 08:44:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:42,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098291080] [2022-04-06 08:44:42,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:42,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:43,074 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:44:43,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:43,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098291080] [2022-04-06 08:44:43,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098291080] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:43,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:43,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:44:43,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764153004] [2022-04-06 08:44:43,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:43,075 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:44:43,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:43,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:44:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:44:43,076 INFO L87 Difference]: Start difference. First operand 362 states and 536 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) [2022-04-06 08:44:46,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:46,529 INFO L93 Difference]: Finished difference Result 397 states and 582 transitions. [2022-04-06 08:44:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:44:46,529 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 104 [2022-04-06 08:44:46,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:46,530 INFO L225 Difference]: With dead ends: 397 [2022-04-06 08:44:46,530 INFO L226 Difference]: Without dead ends: 397 [2022-04-06 08:44:46,530 INFO L912 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 [2022-04-06 08:44:46,531 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 73 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:46,531 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:44:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-04-06 08:44:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 362. [2022-04-06 08:44:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 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) [2022-04-06 08:44:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-04-06 08:44:46,537 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-04-06 08:44:46,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:46,537 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-04-06 08:44:46,537 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) [2022-04-06 08:44:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-04-06 08:44:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-04-06 08:44:46,539 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:46,539 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:44:46,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 08:44:46,539 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:46,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:46,539 INFO L85 PathProgramCache]: Analyzing trace with hash 59407503, now seen corresponding path program 1 times [2022-04-06 08:44:46,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:46,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384279182] [2022-04-06 08:44:46,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:46,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:46,652 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 08:44:46,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:46,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384279182] [2022-04-06 08:44:46,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384279182] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:46,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:46,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:44:46,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805449004] [2022-04-06 08:44:46,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:46,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:44:46,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:46,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:44:46,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:44:46,655 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:47,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:49,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:51,662 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 [] [2022-04-06 08:44:51,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:51,929 INFO L93 Difference]: Finished difference Result 691 states and 1024 transitions. [2022-04-06 08:44:51,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:44:51,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 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 104 [2022-04-06 08:44:51,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:51,931 INFO L225 Difference]: With dead ends: 691 [2022-04-06 08:44:51,932 INFO L226 Difference]: Without dead ends: 691 [2022-04-06 08:44:51,932 INFO L912 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 [2022-04-06 08:44:51,932 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:51,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 433 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 277 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 08:44:51,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-04-06 08:44:51,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-04-06 08:44:51,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 686 states have (on average 1.4868804664723032) internal successors, (1020), 686 states have internal predecessors, (1020), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1024 transitions. [2022-04-06 08:44:51,941 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1024 transitions. Word has length 104 [2022-04-06 08:44:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:51,942 INFO L478 AbstractCegarLoop]: Abstraction has 691 states and 1024 transitions. [2022-04-06 08:44:51,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:51,942 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1024 transitions. [2022-04-06 08:44:51,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-04-06 08:44:51,943 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:51,943 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:44:51,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 08:44:51,944 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:51,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:51,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1871211602, now seen corresponding path program 1 times [2022-04-06 08:44:51,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:51,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422446374] [2022-04-06 08:44:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:51,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 08:44:52,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:52,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422446374] [2022-04-06 08:44:52,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422446374] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:52,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:52,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:44:52,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948775239] [2022-04-06 08:44:52,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:52,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:44:52,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:52,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:44:52,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:44:52,065 INFO L87 Difference]: Start difference. First operand 691 states and 1024 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:53,505 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 [] [2022-04-06 08:44:55,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:55,006 INFO L93 Difference]: Finished difference Result 718 states and 1059 transitions. [2022-04-06 08:44:55,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:44:55,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-04-06 08:44:55,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:55,009 INFO L225 Difference]: With dead ends: 718 [2022-04-06 08:44:55,010 INFO L226 Difference]: Without dead ends: 718 [2022-04-06 08:44:55,010 INFO L912 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 [2022-04-06 08:44:55,010 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:55,010 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:44:55,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-04-06 08:44:55,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2022-04-06 08:44:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 713 states have (on average 1.4796633941093968) internal successors, (1055), 713 states have internal predecessors, (1055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:55,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1059 transitions. [2022-04-06 08:44:55,020 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1059 transitions. Word has length 104 [2022-04-06 08:44:55,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:55,020 INFO L478 AbstractCegarLoop]: Abstraction has 718 states and 1059 transitions. [2022-04-06 08:44:55,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:55,020 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1059 transitions. [2022-04-06 08:44:55,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-04-06 08:44:55,022 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:55,022 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:44:55,022 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 08:44:55,022 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1451694771, now seen corresponding path program 1 times [2022-04-06 08:44:55,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:55,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559168821] [2022-04-06 08:44:55,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:55,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:55,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-04-06 08:44:55,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:55,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559168821] [2022-04-06 08:44:55,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559168821] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:55,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:55,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:44:55,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462031572] [2022-04-06 08:44:55,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:55,115 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:44:55,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:55,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:44:55,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:44:55,116 INFO L87 Difference]: Start difference. First operand 718 states and 1059 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:57,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:58,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:44:58,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:44:58,956 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-04-06 08:44:58,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:44:58,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 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 104 [2022-04-06 08:44:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:44:58,958 INFO L225 Difference]: With dead ends: 720 [2022-04-06 08:44:58,959 INFO L226 Difference]: Without dead ends: 720 [2022-04-06 08:44:58,959 INFO L912 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 [2022-04-06 08:44:58,959 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:44:58,959 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-04-06 08:44:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-04-06 08:44:58,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-04-06 08:44:58,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-04-06 08:44:58,968 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-04-06 08:44:58,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:44:58,969 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-04-06 08:44:58,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:44:58,969 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-04-06 08:44:58,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-04-06 08:44:58,970 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:44:58,970 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 08:44:58,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 08:44:58,970 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:44:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:44:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2030270456, now seen corresponding path program 1 times [2022-04-06 08:44:58,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:44:58,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547854456] [2022-04-06 08:44:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:44:58,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:44:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:44:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:44:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:44:59,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:44:59,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547854456] [2022-04-06 08:44:59,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547854456] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:44:59,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:44:59,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:44:59,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389931138] [2022-04-06 08:44:59,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:44:59,103 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:44:59,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:44:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:44:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:44:59,104 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:00,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:02,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:02,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:02,922 INFO L93 Difference]: Finished difference Result 1056 states and 1564 transitions. [2022-04-06 08:45:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:45:02,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-04-06 08:45:02,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:02,925 INFO L225 Difference]: With dead ends: 1056 [2022-04-06 08:45:02,925 INFO L226 Difference]: Without dead ends: 1056 [2022-04-06 08:45:02,926 INFO L912 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 [2022-04-06 08:45:02,926 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:02,926 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-06 08:45:02,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-04-06 08:45:02,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1054. [2022-04-06 08:45:02,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1049 states have (on average 1.4861773117254529) internal successors, (1559), 1049 states have internal predecessors, (1559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1563 transitions. [2022-04-06 08:45:02,940 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1563 transitions. Word has length 106 [2022-04-06 08:45:02,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:02,940 INFO L478 AbstractCegarLoop]: Abstraction has 1054 states and 1563 transitions. [2022-04-06 08:45:02,940 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:02,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1563 transitions. [2022-04-06 08:45:02,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-04-06 08:45:02,942 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:02,942 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:02,942 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 08:45:02,942 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:02,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:02,942 INFO L85 PathProgramCache]: Analyzing trace with hash 538755348, now seen corresponding path program 1 times [2022-04-06 08:45:02,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:02,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574498014] [2022-04-06 08:45:02,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:02,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:03,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:03,044 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:45:03,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:03,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574498014] [2022-04-06 08:45:03,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574498014] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:03,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:03,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:45:03,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266796106] [2022-04-06 08:45:03,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:03,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:45:03,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:03,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:45:03,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:03,046 INFO L87 Difference]: Start difference. First operand 1054 states and 1563 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:05,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:06,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:08,387 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 [] [2022-04-06 08:45:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:08,827 INFO L93 Difference]: Finished difference Result 1390 states and 2052 transitions. [2022-04-06 08:45:08,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:45:08,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-04-06 08:45:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:08,832 INFO L225 Difference]: With dead ends: 1390 [2022-04-06 08:45:08,832 INFO L226 Difference]: Without dead ends: 1390 [2022-04-06 08:45:08,832 INFO L912 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 [2022-04-06 08:45:08,833 INFO L913 BasicCegarLoop]: 380 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:08,833 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 574 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 08:45:08,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2022-04-06 08:45:08,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1388. [2022-04-06 08:45:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1383 states have (on average 1.480115690527838) internal successors, (2047), 1383 states have internal predecessors, (2047), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 2051 transitions. [2022-04-06 08:45:08,850 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 2051 transitions. Word has length 112 [2022-04-06 08:45:08,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:08,851 INFO L478 AbstractCegarLoop]: Abstraction has 1388 states and 2051 transitions. [2022-04-06 08:45:08,851 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:08,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 2051 transitions. [2022-04-06 08:45:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-04-06 08:45:08,853 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:08,853 INFO L499 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:08,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 08:45:08,854 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:08,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1278673933, now seen corresponding path program 1 times [2022-04-06 08:45:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:08,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998023284] [2022-04-06 08:45:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:08,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:45:08,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:08,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998023284] [2022-04-06 08:45:08,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998023284] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:08,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:08,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:08,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251275112] [2022-04-06 08:45:08,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:08,987 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:08,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:08,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:08,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:08,987 INFO L87 Difference]: Start difference. First operand 1388 states and 2051 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) [2022-04-06 08:45:11,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:13,204 INFO L93 Difference]: Finished difference Result 1690 states and 2489 transitions. [2022-04-06 08:45:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:13,204 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 129 [2022-04-06 08:45:13,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:13,208 INFO L225 Difference]: With dead ends: 1690 [2022-04-06 08:45:13,208 INFO L226 Difference]: Without dead ends: 1690 [2022-04-06 08:45:13,208 INFO L912 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 [2022-04-06 08:45:13,208 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 105 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:13,209 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 380 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 08:45:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-04-06 08:45:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1392. [2022-04-06 08:45:13,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1387 states have (on average 1.4844989185291997) internal successors, (2059), 1387 states have internal predecessors, (2059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2063 transitions. [2022-04-06 08:45:13,228 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2063 transitions. Word has length 129 [2022-04-06 08:45:13,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:13,228 INFO L478 AbstractCegarLoop]: Abstraction has 1392 states and 2063 transitions. [2022-04-06 08:45:13,228 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) [2022-04-06 08:45:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2063 transitions. [2022-04-06 08:45:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-06 08:45:13,230 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:13,230 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:13,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 08:45:13,231 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:13,231 INFO L85 PathProgramCache]: Analyzing trace with hash -224082698, now seen corresponding path program 1 times [2022-04-06 08:45:13,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:13,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251441394] [2022-04-06 08:45:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:13,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 08:45:13,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:13,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251441394] [2022-04-06 08:45:13,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251441394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:13,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:13,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:45:13,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504573538] [2022-04-06 08:45:13,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:13,345 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:45:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:13,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:45:13,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:45:13,345 INFO L87 Difference]: Start difference. First operand 1392 states and 2063 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) [2022-04-06 08:45:15,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:17,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:17,986 INFO L93 Difference]: Finished difference Result 1729 states and 2563 transitions. [2022-04-06 08:45:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:45:17,987 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 134 [2022-04-06 08:45:17,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:17,990 INFO L225 Difference]: With dead ends: 1729 [2022-04-06 08:45:17,990 INFO L226 Difference]: Without dead ends: 1729 [2022-04-06 08:45:17,991 INFO L912 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 [2022-04-06 08:45:17,991 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:17,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 08:45:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-04-06 08:45:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1727. [2022-04-06 08:45:18,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1722 states have (on average 1.4854819976771196) internal successors, (2558), 1722 states have internal predecessors, (2558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2562 transitions. [2022-04-06 08:45:18,012 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2562 transitions. Word has length 134 [2022-04-06 08:45:18,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:18,012 INFO L478 AbstractCegarLoop]: Abstraction has 1727 states and 2562 transitions. [2022-04-06 08:45:18,013 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) [2022-04-06 08:45:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2562 transitions. [2022-04-06 08:45:18,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-06 08:45:18,015 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:18,015 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:18,015 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 08:45:18,015 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:18,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:18,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1937528124, now seen corresponding path program 1 times [2022-04-06 08:45:18,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:18,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891306809] [2022-04-06 08:45:18,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:18,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:18,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:45:18,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:18,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891306809] [2022-04-06 08:45:18,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891306809] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:18,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:18,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:18,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260066707] [2022-04-06 08:45:18,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:18,146 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:18,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:18,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:18,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:18,146 INFO L87 Difference]: Start difference. First operand 1727 states and 2562 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 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) [2022-04-06 08:45:19,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:20,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:23,399 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 [] [2022-04-06 08:45:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:23,829 INFO L93 Difference]: Finished difference Result 2424 states and 3603 transitions. [2022-04-06 08:45:23,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:23,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 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 157 [2022-04-06 08:45:23,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:23,835 INFO L225 Difference]: With dead ends: 2424 [2022-04-06 08:45:23,835 INFO L226 Difference]: Without dead ends: 2424 [2022-04-06 08:45:23,835 INFO L912 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 [2022-04-06 08:45:23,836 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 111 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:23,836 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 378 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-06 08:45:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2022-04-06 08:45:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2047. [2022-04-06 08:45:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 2042 states have (on average 1.4926542605288933) internal successors, (3048), 2042 states have internal predecessors, (3048), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 3052 transitions. [2022-04-06 08:45:23,862 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 3052 transitions. Word has length 157 [2022-04-06 08:45:23,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:23,862 INFO L478 AbstractCegarLoop]: Abstraction has 2047 states and 3052 transitions. [2022-04-06 08:45:23,863 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 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) [2022-04-06 08:45:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 3052 transitions. [2022-04-06 08:45:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-04-06 08:45:23,866 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:23,866 INFO L499 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, 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] [2022-04-06 08:45:23,866 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 08:45:23,866 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:23,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:23,867 INFO L85 PathProgramCache]: Analyzing trace with hash 345707707, now seen corresponding path program 1 times [2022-04-06 08:45:23,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:23,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935516915] [2022-04-06 08:45:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:45:24,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:24,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935516915] [2022-04-06 08:45:24,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935516915] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:24,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:24,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:24,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626896027] [2022-04-06 08:45:24,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:24,010 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:24,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:24,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:24,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:24,011 INFO L87 Difference]: Start difference. First operand 2047 states and 3052 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:25,508 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 [] [2022-04-06 08:45:27,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:29,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:30,881 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 [] [2022-04-06 08:45:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:31,327 INFO L93 Difference]: Finished difference Result 2370 states and 3516 transitions. [2022-04-06 08:45:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:31,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-04-06 08:45:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:31,332 INFO L225 Difference]: With dead ends: 2370 [2022-04-06 08:45:31,332 INFO L226 Difference]: Without dead ends: 2370 [2022-04-06 08:45:31,332 INFO L912 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 [2022-04-06 08:45:31,333 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 68 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:31,333 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 642 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 578 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-04-06 08:45:31,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-04-06 08:45:31,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2195. [2022-04-06 08:45:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2190 states have (on average 1.4977168949771689) internal successors, (3280), 2190 states have internal predecessors, (3280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3284 transitions. [2022-04-06 08:45:31,356 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3284 transitions. Word has length 162 [2022-04-06 08:45:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:31,357 INFO L478 AbstractCegarLoop]: Abstraction has 2195 states and 3284 transitions. [2022-04-06 08:45:31,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:31,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3284 transitions. [2022-04-06 08:45:31,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-04-06 08:45:31,360 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:31,360 INFO L499 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:45:31,360 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 08:45:31,360 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:31,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:31,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1703474583, now seen corresponding path program 1 times [2022-04-06 08:45:31,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:31,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398641746] [2022-04-06 08:45:31,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:31,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:31,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:45:31,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:31,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398641746] [2022-04-06 08:45:31,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398641746] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:31,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:31,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:45:31,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732921731] [2022-04-06 08:45:31,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:31,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:45:31,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:31,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:45:31,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:45:31,500 INFO L87 Difference]: Start difference. First operand 2195 states and 3284 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) [2022-04-06 08:45:32,695 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 [] [2022-04-06 08:45:34,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:35,175 INFO L93 Difference]: Finished difference Result 2512 states and 3705 transitions. [2022-04-06 08:45:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:45:35,175 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 163 [2022-04-06 08:45:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:35,180 INFO L225 Difference]: With dead ends: 2512 [2022-04-06 08:45:35,180 INFO L226 Difference]: Without dead ends: 2512 [2022-04-06 08:45:35,181 INFO L912 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 [2022-04-06 08:45:35,181 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 106 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:35,181 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-06 08:45:35,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-04-06 08:45:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2195. [2022-04-06 08:45:35,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2190 states have (on average 1.4931506849315068) internal successors, (3270), 2190 states have internal predecessors, (3270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:35,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3274 transitions. [2022-04-06 08:45:35,206 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3274 transitions. Word has length 163 [2022-04-06 08:45:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:35,206 INFO L478 AbstractCegarLoop]: Abstraction has 2195 states and 3274 transitions. [2022-04-06 08:45:35,207 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) [2022-04-06 08:45:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3274 transitions. [2022-04-06 08:45:35,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-06 08:45:35,210 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:35,210 INFO L499 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] [2022-04-06 08:45:35,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 08:45:35,211 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:35,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:35,211 INFO L85 PathProgramCache]: Analyzing trace with hash 539016946, now seen corresponding path program 1 times [2022-04-06 08:45:35,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:35,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188728661] [2022-04-06 08:45:35,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:35,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-06 08:45:35,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:35,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188728661] [2022-04-06 08:45:35,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188728661] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:45:35,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:45:35,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 08:45:35,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502380107] [2022-04-06 08:45:35,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:45:35,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:45:35,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:45:35,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:45:35,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:45:35,655 INFO L87 Difference]: Start difference. First operand 2195 states and 3274 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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) [2022-04-06 08:45:37,154 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 [] [2022-04-06 08:45:39,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:41,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:43,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:44,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:45,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:45:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:45:45,965 INFO L93 Difference]: Finished difference Result 2203 states and 3284 transitions. [2022-04-06 08:45:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 08:45:45,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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 171 [2022-04-06 08:45:45,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:45:45,971 INFO L225 Difference]: With dead ends: 2203 [2022-04-06 08:45:45,972 INFO L226 Difference]: Without dead ends: 2195 [2022-04-06 08:45:45,972 INFO L912 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 [2022-04-06 08:45:45,972 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:45:45,972 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 841 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 443 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-04-06 08:45:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-04-06 08:45:45,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2195. [2022-04-06 08:45:45,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2190 states have (on average 1.4926940639269406) internal successors, (3269), 2190 states have internal predecessors, (3269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:45:45,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3273 transitions. [2022-04-06 08:45:45,997 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3273 transitions. Word has length 171 [2022-04-06 08:45:45,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:45:45,998 INFO L478 AbstractCegarLoop]: Abstraction has 2195 states and 3273 transitions. [2022-04-06 08:45:45,998 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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) [2022-04-06 08:45:45,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3273 transitions. [2022-04-06 08:45:46,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-06 08:45:46,001 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:45:46,001 INFO L499 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] [2022-04-06 08:45:46,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 08:45:46,002 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:45:46,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:45:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash -422608269, now seen corresponding path program 1 times [2022-04-06 08:45:46,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:45:46,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432214301] [2022-04-06 08:45:46,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:45:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:45:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:45:46,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:45:46,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432214301] [2022-04-06 08:45:46,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432214301] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:45:46,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762550650] [2022-04-06 08:45:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:45:46,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:45:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:45:46,862 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) [2022-04-06 08:45:46,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 08:45:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:45:47,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 172 conjunts are in the unsatisfiable core [2022-04-06 08:45:47,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:45:48,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:45:51,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:45:54,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:45:58,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:46:32,498 INFO L244 Elim1Store]: Index analysis took 136 ms